Light tuna, canned in water
Checked by us One serving: 55 g (about ⅓ can) · 50 kcal
Weighed drained, without the liquid in the can.
Lots of selenium, vitamin B12 and omega-3: EPA + DHA. Rich in 1 more nutrient: see Good for.
Worth knowing: dioxins and dioxin-like PCBs.
Good for
How we counted this
What one serving (55 g) gives you.
Your body needs enough of each of these. Past enough, more doesn’t help. Amounts are what the food databases list, not what your body absorbs, unless a row says it was measured.
The words: “A lot” means one serving gives 20% or more of Health Canada’s daily amount, “Some” 10% to 19%, “A little” 2% to 9%, “Almost none” under 2%. Strongest word first; within a word, protein and fibre lead, then the biggest share. ?
A milligram (mg) is a thousandth of a gram, and a microgram (µg) a thousandth of a milligram: 1,000 µg make 1 mg.
- A lot
Selenium
Your thyroid uses it to make its hormones.
Learn more
37.3 µg in one serving: 68% of the 55 µg a day.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, selenium fact sheet for health professionals
- A lot
Vitamin B12
Your body needs it to make red blood cells and keep nerves working.
Learn more
1.41 µg in one serving: 59% of the 2.4 µg a day.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, vitamin B12 fact sheet for health professionals
- A lot
Omega-3: EPA + DHA
Long-chain omega-3s, built into your cell membranes. DHA is concentrated in your brain and retinas.
Learn more
122 mg in one serving: 49% of the 250 mg a day.
Health Canada sets no daily amount for these fats, so the daily figure here is the European Food Safety Authority’s.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, omega-3 fatty acids fact sheet for health professionals
- A lot
Niacin (B3, niacin equivalents)
More than 400 of your enzymes need it to work.
Learn more
7.49 mg in one serving: 47% of the 16 mg a day men need, 54% of the 14 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, niacin fact sheet for health professionals
18 more nutrients below “a lot”
- Some
Protein
Your muscles, and every other tissue, are built and repaired from it.
Learn more
10.5 g in one serving: 19% of the 56 g a day men need, 23% of the 46 g women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. Institute of Medicine 2005, Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids
- Some
Vitamin B6
Helps you use protein, and your brain needs it to make its chemical messengers.
Learn more
0.18 mg in one serving: 14% of the 1.3 mg a day.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, vitamin B6 fact sheet for health professionals
- A little
Iron
Carries oxygen in your blood.
Learn more
0.92 mg in one serving: 12% of the 8 mg a day men need, 5% of the 18 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, iron fact sheet for health professionals
- A little
Vitamin D
Your body needs it to absorb calcium and keep your bones hard.
Learn more
Your skin also makes it in sunlight, so food is only one of its sources.
0.66 µg in one serving: 4% of the 15 µg a day.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, vitamin D fact sheet for health professionals
- A little
Riboflavin (B2)
Your cells use it to make energy and handle fats. It also helps turn tryptophan into niacin and activate vitamin B6.
Learn more
0.05 mg in one serving: 4% of the 1.3 mg a day men need, 5% of the 1.1 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, riboflavin fact sheet for health professionals
- A little
Zinc
Your immune system and healing wounds depend on it.
Learn more
0.36 mg in one serving: 3% of the 11 mg a day men need, 5% of the 8 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, zinc fact sheet for health professionals
- A little
Magnesium
Your muscles and nerves need it to work.
Learn more
12.5 mg in one serving: 3% of the 400 mg a day men need, 4% of the 310 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, magnesium fact sheet for health professionals
- A little
Choline
Your cells need it for their membranes, and to make acetylcholine, a messenger for memory, mood and muscle control.
Learn more
16.1 mg in one serving: 3% of the 550 mg a day men need, 4% of the 425 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, choline fact sheet for health professionals
- A little
Potassium
Your nerves, muscles and kidneys need it to work.
Learn more
96.8 mg in one serving: 3% of the 3,400 mg a day men need, 4% of the 2,600 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, potassium fact sheet for health professionals
- A little
Thiamin (B1)
Your cells use it to get energy from food, and so to grow and work.
Learn more
0.02 mg in one serving: 2% of the 1.2 mg a day men need, 2% of the 1.1 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, thiamin fact sheet for health professionals
- Almost none
Vitamin E
Shields the fats in your cells from damage; your immune system uses it too.
Learn more
0.18 mg in one serving: 1% of the 15 mg a day.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, vitamin E fact sheet for health professionals
- Almost none
Vitamin A
Your eyes need it to see in dim light.
Learn more
Getting enough matters; more than enough doesn’t sharpen your sight.
9.35 µg in one serving: 1% of the 900 µg a day men need, 1% of the 700 µg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, vitamin A fact sheet for health professionals
- Almost none
Calcium
Builds your bones and teeth.
Learn more
9.9 mg in one serving: 1% of the 1,000 mg a day.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, calcium fact sheet for health professionals
- Almost none
Folate
Your body needs it to make DNA and to divide new cells.
Learn more
2.2 µg in one serving: 1% of the 400 µg a day.
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, folate fact sheet for health professionals
- Almost none
Vitamin K1
Your blood needs it to clot.
Learn more
0.11 µg in one serving: under 1% of the 120 µg a day men need, under 1% of the 90 µg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, vitamin K fact sheet for health professionals
- Almost none
Omega-3: ALA
The one omega-3 your body can’t make: it must come from food. Your cells build it into their membranes and burn it for energy.
Learn more
1.1 mg in one serving: under 1% of the 1,600 mg a day men need, under 1% of the 1,100 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, omega-3 fatty acids fact sheet for health professionals
- Almost none
Fibre
Keeps your gut moving.
Learn more
0 g in one serving: under 1% of the 38 g a day men need, under 1% of the 25 g women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. Institute of Medicine 2005, Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids
- Almost none
Vitamin C
Your body makes collagen with it, which wounds need to heal. It also helps you absorb iron from plants.
Learn more
0 mg in one serving: under 1% of the 90 mg a day men need, under 1% of the 75 mg women need. The word follows the smaller share, which is the share of the higher amount. ?
Source: How much of it gets in hasn’t been measured for this food yet. NIH Office of Dietary Supplements, vitamin C fact sheet for health professionals
Watch out
How we counted this
Dioxins and dioxin-like PCBs
Worth knowingAn average adult is already at or past the limit from other food.
Learn more
Flagged for pregnancy, planning a pregnancy and breastfeeding; no cap for other adults. A daily serving is 18% (lower bound) to 77% (upper bound) of EFSA's 2026 tolerable weekly intake, 0.6 pg WHO 2022 toxic equivalents/kg body weight/week, on Foodtopsy's recalculation of the CFIA results with the 2022 toxic equivalency factors; one serving a week is 2.6-11%. A daily serving adds 1.9-5.8% to EFSA's adult average intake of 1.87-5.64 pg/kg body weight/week (8.2-25% at the upper-bound concentration): far from doubling, so no cap either way.
Methylmercury
Nothing to watchYou’d need about 2.3 servings a day, every day, of this food alone to use up what an average adult’s intake leaves under the limit.
Learn more
One serving carries 4.54 µg
How we got this
An average adult already takes in about 18% of the limit. One serving a day fits in the room left.
Counted from zero, with no allowance for what adults already take in from other food, 1,100 g a week would reach the limit.
Why this rating: Eating it daily comes to 385 g a week, which stays within the 900 g of room left before the limit.
Women who are or may become pregnant, and children: 170 g a day.
The dataset’s rating: Nothing to watch: under the limit
No cap, on agency advice: Health Canada's advice on mercury in fish says it does not apply to light tuna, and the FDA and EPA list light tuna among their Best Choices. A daily 55 g serving is 0.454 µg/kg body weight/week, 35% of the EFSA tolerable weekly intake of 1.3 µg/kg body weight/week (33-37% across lower and upper bounds); on the FDA light-tuna mean it is 53%, on the FDA Total Diet Study 97%, and at the CFIA samples' 95th percentile 98%. One serving a week is 5%.
CFIA, Mercury and Metals in Fish Products 2000-2021 (tuna rows: 7,072; canned 2,388) · grade A
Checked for cadmium, histamine and lead: fine at normal amounts.
Cadmium
Nothing to watchYou’d need about 8.6 servings a day, every day, of this food alone to use up what an average adult’s intake leaves under the limit.
Learn more
One serving carries 0.85 µg
How we got this
A serving a day adds 4.8% to what an average adult already takes in: a share of that intake, not of the limit. With that serving every day, an average adult would be at about 74% of the limit.
An average adult already takes in about 71% of the limit. One serving a day fits in the room left.
Counted from zero, with no allowance for what adults already take in from other food, 11,000 g a week would reach the limit.
Why this rating: Eating it daily comes to 385 g a week, which stays within the 3,300 g of room left before the limit.
The dataset’s rating: Nothing to watch: under the limit
A daily serving adds 4.8% to an average adult's cadmium intake (EFSA 2012 adult median, 1.77 µg/kg body weight/week; Canadian adults in 2007: 1.2-1.75), far from doubling it, so no cap.
CFIA, Mercury and Metals in Fish Products 2000-2021 (tuna rows: 7,072; canned 2,388) · grade A
Histamine
Nothing to watchYou’d need more than 100 servings in one meal of this food alone to reach the limit.
Learn more
One serving carries 0.39 mg
How we got this
7,100 g in one meal reaches the limit
The dataset’s rating: Nothing to watch: under the limit
Rated on the dose in one meal: 50 mg per person per meal for healthy adults (EFSA 2011). 55 g at the mean is 0.8%; at the maximum, 20.97 mg/kg, 2.3%; at Health Canada's 100 mg/kg limit 11%; at 200 mg/kg 22%: no flag for healthy adults. People with histamine intolerance, and people taking isoniazid, whose label says to avoid histamine-containing foods such as tuna, keep a separate flag.
Lead
Nothing to watchYou’d need more than 100 servings a day, every day, of this food alone to double the lead an average adult already gets. No dose is known to be safe, so doubling is where we flag.
Learn more
A serving a day adds 0.9% to what an average adult already takes in. There is no limit to take a share of.
One serving carries 0.3 µg
How we got this
The dataset’s rating: Nothing to watch: doesn’t double average intake
Adds 0.9% to EFSA's average adult intake (35 µg/day; 0.50 µg/kg body weight/day), 0.3% on the Total Diet Study basis: far from doubling it, so no cap.
CFIA, Mercury and Metals in Fish Products 2000-2021 (tuna rows: 7,072; canned 2,388) · grade A
For some people
Measured, not rated: 64.3 mg purines
Learn more
If you have gout: avoiding organ meats such as liver, which are higher in purines, is one of the diet changes that help lower uric acid in the blood and the number of flares, according to the US National Institutes of Health (NIH).
Source: NIAMS (NIH), Gout: diagnosis, treatment, and steps to take
How we got this
Not rated for people with gout or hyperuricemia: the only reference is a Japanese dietary recommendation of 400 mg purines a day, seen through Kaneko 2014 rather than an agency document, so no reference is established. Canned tuna measures 116.9 mg purines per 100 g (HPLC, Kaneko 2014, four purine bases; the species and packing liquid are not stated). A 55 g serving carries about 64 mg. For scale only, 400 mg would be reached at about 342 g.
Worth knowing
No limit applies, so none is rated.
Sugar
0 g of sugar in a 55 g serving, natural and added together.
Learn more
Shown, not rated. The food tables we read give total sugar, and few give added sugar, so the site can’t yet tell sugar added in making a food from the sugar in fruit or milk.
Also measured in it
Figures from the dataset. None has a limit to be rated against, so none is a verdict.
Tyramine: 6.8–15 mg per kg fresh weight, so about 0.37–0.8 mg in a 55 g serving. · Sanchezperez 2021, EFSA 2011 · grade B
For scale, EFSA found no reported ill effects at 6 mg of tyramine in a meal for people on the older MAO-inhibitor antidepressants, 50 mg for those on the newer ones and 600 mg for healthy people not taking them, based on limited data. EFSA 2011
Also checked (nothing to act on) · 2
Noted for context, or not measured in this food yet.
Shown as context, not scored.
Not measured in this food yet. No inorganic fraction measured in any source I opened; no percentage applied
Better options
How we counted this
“Better” here always means better at something the row names: more of one nutrient, more nutrients per serving, or the goal you pick. It never means better in every way.
Every amount below is for the same weight, 55 g, the size of one serving of this food, so a swap compares like with like. A serving of another food can be bigger or smaller.
A food is listed only if it gives clearly more: at least a fifth more than this food, and at least 10% of the daily amount more.
More of what it’s good for
More vitamin B12
Mackerel, cooked10.5 µg in 55 g (this food: 1.41 µg) · but less seleniumWorth knowing: dioxins and dioxin-like PCBs · this food has it too
Sardines, canned in water5.94 µg in 55 g (this food: 1.41 µg) · but less seleniumWorth knowing: dioxins and dioxin-like PCBs · this food has it too
More omega-3: EPA + DHA
- Mackerel, cooked662 mg in 55 g (this food: 122 mg) · but less seleniumWorth knowing: dioxins and dioxin-like PCBs · this food has it too
Sardines, canned in oil540 mg in 55 g (this food: 122 mg) · but less seleniumWorth knowing: dioxins and dioxin-like PCBs · this food has it too
Amounts as listed, not adjusted for how much gets in.
For selenium: Mussels, cooked would lead, in the same 55 g, but is left out (Cadmium: limit it).
More nutrients per serving, counted together
The other main-dish proteins we’ve checked with more nutrients per serving than this one, counting at most 100 kcal. One score ranks them all, so the same few often lead.
Shrimp, cooked- More omega-3: EPA + DHA (152 mg vs 122 mg)
- More choline (74.5 mg vs 16.1 mg)
- Less niacin (3.86 mg vs 7.49 mg)
- Less vitamin B12 (0.91 µg vs 1.41 µg)
- Sardines, canned in oil
- More omega-3: EPA + DHA (540 mg vs 122 mg)
- More vitamin B12 (4.92 µg vs 1.41 µg)
- More calcium (210 mg vs 9.9 mg)
- Less selenium (29 µg vs 37.3 µg)
- Less niacin (5.41 mg vs 7.49 mg)
- Mackerel, cooked
- More vitamin B12 (10.5 µg vs 1.41 µg)
- More omega-3: EPA + DHA (662 mg vs 122 mg)
- More riboflavin (0.23 mg vs 0.05 mg)
- Less selenium (28.4 µg vs 37.3 µg)
Where the calcium card measured that less calcium gets in than from milk, calcium counts for less; everything else is as listed.
Your goal
Your goal changes only this list, not what the food gives you or what to watch.
Losing weight: fewer calories, and more nutrients, protein and fibre for each calorie.
Chicken liver, simmered would lead this list, but it’s left out (Preformed vitamin A (retinol): limit it).
Building muscle: more protein and more calories, per 100 g.
Bacon, pan-fried33.9 g protein · 468 kcal per 100 gWorth knowing: dioxins and dioxin-like PCBs · this food has it too
Chicken breast, roasted31 g protein · 165 kcal per 100 g
Pork chop, pan-fried27.6 g protein · 238 kcal per 100 gWorth knowing: dioxins and dioxin-like PCBs · this food has it tooNeeds care in handling: see its page
Why some foods aren’t suggested
Left out: Mussels, cooked (Cadmium: limit it).
Left out: Clams, cooked (Cadmium: limit it).
Left out: Farmed salmon, cooked (Histamine: go easy).
Left out: Chicken liver, simmered (Preformed vitamin A (retinol): limit it).
Bring a tracker export or describe your usual week. The same rules check all of it.
The numbers
Open every value
Name in the database: Tuna, canned (light), in water, drained
How the serving was set: 55 g (Health Canada I.4, marine and fresh water animals, canned; fraction can (55 g))
Listed nutrients, per 100 g
For each nutrient, the value this page uses is marked “used”. A row marked “second database” is another database’s figure for a matching food, kept so you can see how far databases disagree (they can differ in the samples analysed, lab methods and rounding). Its own cells are worked out from it, but none of the page’s words or scores are.
| Nutrient | Per serving | Per 100 calories | How | Source | Grade | |
|---|---|---|---|---|---|---|
| Omega-3: ALA | 0.002 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Calcium | 18 mg | 9.9 mg | 20 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 10 mg | 5.5 mg | 11.11 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| 17 mg | 9.35 mg | 18.89 mg | copy of USDA · not used | Canadian Nutrient File 2026 #3081 | C | |
| Carbohydrate | 0.08 g | 0.04 g | 0.09 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Choline | 29.3 mg | 16.12 mg | 32.56 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Energy | 90 kcal | 49.5 kcal | – | FDC Energy (kcal) used | US food database (USDA Foundation Foods) | – |
| Omega-3: EPA + DHA | 0.222 g | 0.12 g | 0.25 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fat | 0.94 g | 0.52 g | 1.04 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 1 g | 0.55 g | 1.11 g | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Cholesterol | 36 mg | 19.8 mg | 40 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fatty acids, total saturated | 0.224 g | 0.12 g | 0.25 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fibre | 0 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| 0 g | 0 g | 0 g | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Folate | 4 µg | 2.2 µg | 4.44 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| 3 µg | 1.65 µg | 3.33 µg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Iron | 1.67 mg | 0.92 mg | 1.86 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 1.51 mg | 0.83 mg | 1.68 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Magnesium | 22.7 mg | 12.49 mg | 25.22 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 27 mg | 14.85 mg | 30 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Niacin (B3, niacin equivalents) | 13.619 mg | 7.49 mg | 15.13 mg | listed used | Canadian Nutrient File 2026 #3081 | C |
| Phosphorus | 137 mg | 75.35 mg | 152.22 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 171 mg | 94.05 mg | 190 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Potassium | 176 mg | 96.8 mg | 195.56 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 230 mg | 126.5 mg | 255.56 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Protein | 19 g | 10.45 g | 21.11 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 24.9 g | 13.7 g | 27.67 g | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Riboflavin (B2) | 0.082 mg | 0.05 mg | 0.09 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 0.11 mg | 0.06 mg | 0.12 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Selenium | 67.8 µg | 37.29 µg | 75.33 µg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 69 µg | 37.95 µg | 76.67 µg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Sodium | 219 mg | 120.45 mg | 243.33 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 293 mg | 161.15 mg | 325.56 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Sugars | 0 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| 0 g | 0 g | 0 g | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Thiamin (B1) | 0.03 mg | 0.02 mg | 0.03 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Vitamin A | 17 µg | 9.35 µg | 18.89 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Vitamin B12 | 2.57 µg | 1.41 µg | 2.86 µg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 3.4 µg | 1.87 µg | 3.78 µg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Vitamin B6 | 0.32 mg | 0.18 mg | 0.36 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 0.31 mg | 0.17 mg | 0.34 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Vitamin C | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Vitamin D | 1.2 µg | 0.66 µg | 1.33 µg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 1.1 µg | 0.61 µg | 1.22 µg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Vitamin E | 0.33 mg | 0.18 mg | 0.37 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| 0.42 mg | 0.23 mg | 0.47 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Vitamin K1 | 0.2 µg | 0.11 µg | 0.22 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| 0.25 µg | 0.14 µg | 0.28 µg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Water | 79 g | 43.45 g | 87.78 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 74.3 g | 40.87 g | 82.56 g | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Zinc | 0.66 mg | 0.36 mg | 0.73 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 0.9 mg | 0.5 mg | 1 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C |
| Nutrient | Per 100 g | Per serving | Per 100 calories | How | Source | Grade |
|---|---|---|---|---|---|---|
| Beta-carotene | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Copper | 0.048 mg | 0.03 mg | 0.05 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 0.07 mg | 0.04 mg | 0.08 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Energy (Atwater general) | 85 kcal | 46.75 kcal | 94.44 kcal | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Energy (Atwater specific) | 90 kcal | 49.5 kcal | 100 kcal | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Nitrogen | 3.04 g | 1.67 g | 3.38 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Ash | 0.98 g | 0.54 g | 1.09 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Sucrose | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Glucose | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fructose | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Maltose | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Alcohol, ethyl | 0 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Caffeine | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Theobromine | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Energy | 376 kj | 206.8 kj | 417.78 kj | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Sugars, Total | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Galactose | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Total fat (NLEA) | 0.6 g | 0.33 g | 0.67 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fluoride, F | 18.6 µg | 10.23 µg | 20.67 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Vitamin A, IU | 57 iu | 31.35 iu | 63.33 iu | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Carotene, alpha | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Vitamin D (D2 + D3), International Units | 47 iu | 25.85 iu | 52.22 iu | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Vitamin D3 (cholecalciferol) | 1.2 µg | 0.66 µg | 1.33 µg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 25-hydroxycholecalciferol | 0 µg | 0 µg | 0 µg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Cryptoxanthin, beta | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Lycopene | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tocopherol, beta | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tocopherol, gamma | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tocopherol, delta | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tocotrienol, alpha | 0.05 mg | 0.03 mg | 0.06 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tocotrienol, beta | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tocotrienol, delta | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Vitamin K (Dihydrophylloquinone) | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Folic acid | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Folate, food | 4 µg | 2.2 µg | 4.44 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Folate, DFE | 4 µg | 2.2 µg | 4.44 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Betaine | 2.7 mg | 1.49 mg | 3 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tryptophan | 0.209 g | 0.11 g | 0.23 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Threonine | 0.817 g | 0.45 g | 0.91 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Isoleucine | 0.858 g | 0.47 g | 0.95 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Leucine | 1.514 g | 0.83 g | 1.68 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Lysine | 1.711 g | 0.94 g | 1.9 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Methionine | 0.551 g | 0.3 g | 0.61 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Cystine | 0.2 g | 0.11 g | 0.22 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Phenylalanine | 0.727 g | 0.4 g | 0.81 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Tyrosine | 0.629 g | 0.35 g | 0.7 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Valine | 0.959 g | 0.53 g | 1.07 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Arginine | 1.115 g | 0.61 g | 1.24 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Histidine | 0.548 g | 0.3 g | 0.61 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Alanine | 1.127 g | 0.62 g | 1.25 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Aspartic acid | 1.907 g | 1.05 g | 2.12 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Glutamic acid | 2.78 g | 1.53 g | 3.09 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Glycine | 0.894 g | 0.49 g | 0.99 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Proline | 0.659 g | 0.36 g | 0.73 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Serine | 0.76 g | 0.42 g | 0.84 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Vitamin E, added | 0 mg | 0 mg | 0 mg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Vitamin B-12, added | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Fatty acids, total trans | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 4:0 | 0.001 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 6:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 8:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 10:0 | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 12:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 14:0 | 0.011 g | 0.01 g | 0.01 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 16:0 | 0.134 g | 0.07 g | 0.15 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 18:0 | 0.054 g | 0.03 g | 0.06 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 20:0 | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 18:1 | 0.084 g | 0.05 g | 0.09 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| PUFA 18:2 | 0.014 g | 0.01 g | 0.02 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| PUFA 18:3 | 0.002 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| PUFA 20:4 | 0.022 g | 0.01 g | 0.02 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 22:6 n-3 (DHA) | 0.197 g | 0.11 g | 0.22 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 22:0 | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 14:1 | 0 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| MUFA 16:1 | 0.015 g | 0.01 g | 0.02 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| PUFA 18:4 | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 20:1 | 0.004 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:5 n-3 (EPA) | 0.025 g | 0.01 g | 0.03 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 22:1 | 0 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| PUFA 22:5 n-3 (DPA) | 0.004 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| TFA 14:1 t | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fatty acids, total monounsaturated | 0.114 g | 0.06 g | 0.13 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fatty acids, total polyunsaturated | 0.259 g | 0.14 g | 0.29 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 15:0 | 0.005 g | 0 g | 0.01 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 17:0 | 0.007 g | 0 g | 0.01 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 24:0 | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| TFA 16:1 t | 0.001 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| TFA 18:1 t | 0.001 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| TFA 22:1 t | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| TFA 18:2 t not further defined | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 18:2 CLAs | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 24:1 c | 0.006 g | 0 g | 0.01 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:2 n-6 c,c | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 16:1 c | 0.016 g | 0.01 g | 0.02 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 18:1 c | 0.086 g | 0.05 g | 0.1 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 18:2 n-6 c,c | 0.013 g | 0.01 g | 0.01 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 22:1 c | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 18:3 n-6 c,c,c | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 17:1 | 0.003 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:3 | 0.001 g | 0 g | 0 g | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Fatty acids, total trans-monoenoic | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fatty acids, total trans-dienoic | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Fatty acids, total trans-polyenoic | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 15:1 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 22:2 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 11:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 18:3 n-3 c,c,c (ALA) | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:3 n-3 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:3 n-6 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 22:4 | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:3 n-9 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 5:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 7:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 9:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 21:0 | 0.001 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| SFA 23:0 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 12:1 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 14:1 c | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 17:1 c | 0.003 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 20:1 c | 0.003 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| TFA 20:1 t | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 22:1 n-9 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| MUFA 22:1 n-11 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 18:2 c | 0.013 g | 0.01 g | 0.01 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 18:3 c | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| TFA 18:3 t | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:3 c | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 22:3 | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:4c | 0.022 g | 0.01 g | 0.02 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:5c | 0.025 g | 0.01 g | 0.03 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 22:5 c | 0.004 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 22:6 c | 0.197 g | 0.11 g | 0.22 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| PUFA 20:2 c | 0.002 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| Iodine | 8.7 µg | 4.78 µg | 9.67 µg | listed used | USDA iodine database (2024) #Fish, tuna, canned in water, drained | C |
| 12 µg | 6.6 µg | 13.33 µg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| 0 µg | 0 µg | 0 µg | second database · not used | US food database (USDA Foundation Foods) #334194 | C | |
| Lactose | 0 g | 0 g | 0 g | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 0 g | 0 g | 0 g | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Lutein + zeaxanthin | 0 µg | 0 µg | 0 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| Manganese | 0.019 mg | 0.01 mg | 0.02 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 0.01 mg | 0.01 mg | 0.01 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Niacin (B3, preformed) | 9.92 mg | 5.46 mg | 11.02 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 10.3 mg | 5.67 mg | 11.44 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Pantothenic acid (B5) | 0.148 mg | 0.08 mg | 0.16 mg | listed used | US food database (USDA Foundation Foods) #334194 | C |
| 0.19 mg | 0.1 mg | 0.21 mg | second database · not used | UK food tables (CoFID 2021) #16-416 | C | |
| Retinol | 17 µg | 9.35 µg | 18.89 µg | from SR Legacy used | US food database (USDA SR Legacy) #173709 | C |
| 26 µg | 14.3 µg | 28.89 µg | second database · not used | UK food tables (CoFID 2021) #16-416 | C |
Change the amount to rescale the first column. Nutrients a database doesn't list are missing, not zero.
Hazard rows as the dataset rates them
- BPA from can linings · Context · Shown as context, not scored. · Health Canada, Trends of bisphenol A occurrence in canned food… · C
- Cadmium · Nothing to watch: under the limit · A daily serving adds 4.8% to an average adult's cadmium intake (EFSA 2012 adult median, 1.77 µg/kg body weight/week; Canadian adults in 2007: 1.2-1.75), far from doubling it, so no cap. · CFIA mercury and metals in fish (2000–2021) · A
- Dioxins and dioxin-like PCBs · Worth knowing · Flagged for pregnancy, planning a pregnancy and breastfeeding; no cap for other adults. A daily serving is 18% (lower bound) to 77% (upper bound) of EFSA's 2026 tolerable weekly intake, 0.6 pg WHO 2022 toxic equivalents/kg body weight/week, on Foodtopsy's recalculation of the CFIA results with the 2022 toxic equivalency factors; one serving a week is 2.6-11%. A daily serving adds 1.9-5.8% to EFSA's adult average intake of 1.87-5.64 pg/kg body weight/week (8.2-25% at the upper-bound concentration): far from doubling, so no cap either way. · CFIA dioxins survey (2014–2019) · A
- Fish allergy · Worth knowing · Fish is a Health Canada priority allergen · Health Canada, priority allergens · A
- Histamine · Nothing to watch: under the limit · Rated on the dose in one meal: 50 mg per person per meal for healthy adults (EFSA 2011). 55 g at the mean is 0.8%; at the maximum, 20.97 mg/kg, 2.3%; at Health Canada's 100 mg/kg limit 11%; at 200 mg/kg 22%: no flag for healthy adults. People with histamine intolerance, and people taking isoniazid, whose label says to avoid histamine-containing foods such as tuna, keep a separate flag. · Tunc 2025 · A
- Inorganic arsenic · Not rated yet · No inorganic fraction measured in any source I opened; no percentage applied · CFIA mercury and metals in fish (2000–2021)
- Lead · Nothing to watch: doesn’t double average intake · Adds 0.9% to EFSA's average adult intake (35 µg/day; 0.50 µg/kg body weight/day), 0.3% on the Total Diet Study basis: far from doubling it, so no cap. · CFIA mercury and metals in fish (2000–2021) · A
- Methylmercury · Nothing to watch: under the limit · No cap, on agency advice: Health Canada's advice on mercury in fish says it does not apply to light tuna, and the FDA and EPA list light tuna among their Best Choices. A daily 55 g serving is 0.454 µg/kg body weight/week, 35% of the EFSA tolerable weekly intake of 1.3 µg/kg body weight/week (33-37% across lower and upper bounds); on the FDA light-tuna mean it is 53%, on the FDA Total Diet Study 97%, and at the CFIA samples' 95th percentile 98%. One serving a week is 5%. · CFIA mercury and metals in fish (2000–2021) · A
- Purines and gout · Not rated yet · Not rated for people with gout or hyperuricemia: the only reference is a Japanese dietary recommendation of 400 mg purines a day, seen through Kaneko 2014 rather than an agency document, so no reference is established. Canned tuna measures 116.9 mg purines per 100 g (HPLC, Kaneko 2014, four purine bases; the species and packing liquid are not stated). A 55 g serving carries about 64 mg. For scale only, 400 mg would be reached at about 342 g. · Kaneko 2014 · C
Oxalate, phytate and gut-tolerance measurements
- histamine: mean 7.05 +/- 1.07 SE (mean of the 19 positives, inferred); 19 of 30 positive, 11 not detected mg/kg · fresh weight (as sold, canned) · canned tuna, packing medium not stated · grade A · Tunc 2025
- histamine: category 'preserved and semi-preserved fish' n=151: mean 10.03 (standard deviation 53.32), P95 20.39, ND to 657.05; the 657 is one canned sardine; no tuna row mg/kg · fresh weight · preserved and semi-preserved fish, Spanish retail (category) · grade B · Sanchezperez 2021
- histamine: mean 0.36 · range nd–2.06 · n=12 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, grated, canned in water and salt · grade B · Diniz 2025
- histamine: mean 1.08 · n=3 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, grated, canned in water and salt · grade B · Diniz 2025
- histamine: 41 of 92 cans positive, range 0.45-83.73 mg/kg · as sold · canned tuna, Brazil (92 cans; 41 positive) · grade B · Tun 2025
- histamine: mean 9.21 · standard deviation 14.8 mg/kg · fresh weight (can contents) · canned tuna, as sold (contents of the can, imported products, Serbian retail stores, 2018); oil or water not stated · grade A · Simunovic 2019
- histamine: mean 21.7 · standard deviation 89.1 mg/kg · fresh weight (can contents) · canned tuna, as sold (contents of the can, imported products, Serbian retail stores, 2018); oil or water not stated · grade A · Simunovic 2019
- histamine: maximum mg/kg · fresh weight (can contents) · canned tuna, as sold (contents of the can, imported products, Serbian retail stores, 2018); oil or water not stated · grade A · Simunovic 2019
- histamine: not detected in 16/16 samples over 8 days at 4 C mg/kg · fresh weight · canned tuna in sunflower oil, opened, homogenised with canned corn, carrots and lettuce, kept at 4 C and sampled daily for 8 days · grade A · Altafini 2022
- histamine: bins in mg/kg: <LoQ (5) 58.91% as printed (480/819 = 58.6%); 5-50 34.92%; 50-100 3.30%; 100-150 0.37%; 150-200 1.34%; >200 1.46% mg/kg · fresh weight (can contents) · canned tuna, as sold (contents of the can, imported products, Serbian retail stores, 2018); oil or water not stated · grade A · Simunovic 2019
- histamine: mean 60.91 · standard deviation 78.1 · range 6–420 · 44.4 (60 of 135 cans below LoQ 5 mg/kg; computed from n>LoQ)% below the detection limit mg/kg · fresh weight (can contents, oil drained) · canned tuna, imported, oil drained and pressed before analysis, Belgrade retail July 2015 · grade A · Dimitrijevic 2016
- histamine: bands in mg/kg: <10: 50.37%; 10-50: 30.37%; >50: 19.26% mg/kg · fresh weight (can contents, oil drained) · canned tuna, imported, oil drained and pressed before analysis, Belgrade retail July 2015 · grade A · Dimitrijevic 2016
- histamine: 165/165 below 100 mg/kg (screening cut-off) mg/kg · fresh weight · canned yellowfin tuna in water (80 g cans), five Italian brands, Sassari retail Dec 2018-Oct 2019 · grade B · Crobu 2021
- histamine: mean of positive cans 7.05 · range 2.62–20.97 · 36.7 (11 of 30 not detected)% below the detection limit mg/kg · fresh weight (homogenised can contents) · canned tuna as sold, 3 Turkish brands (10 cans each), Ankara supermarkets · grade A · Tun 2025
- histamine: mean of positive cans 10.97 · standard deviation 9.86 · range 2.6–30.4 · 90 (72 of 80 negative)% below the detection limit mg/kg · fresh weight · canned tuna 'of oil and light consistency', 4 brands, Ankara supermarkets · grade A · Er B, Demirhan B, Bas SY, Yentur G, Oktem AB
- histamine: 8/80 positive (10.0%); max 32.3 mg/kg (CZE) mg/kg · fresh weight · canned tuna 'of oil and light consistency', 4 brands, Ankara · grade A · Er B, Demirhan B, Bas SY, Yentur G, Oktem AB
- histamine: mean 5.78 · standard deviation 6.14 · range 2.14–21.69 · n 56 cans (22 brands) mg/100 g · fresh weight (can contents; 'mg/100 g tuna') · canned tuna from 22 manufacturers, brine, oil and other media, stored at -20 C before analysis · grade A · Sadeghi 2019
- histamine: mean 10.03 · standard deviation 53.32 · range nd–657.05 · n=151 mg/kg · fresh weight · preserved and semi-preserved fish (canned and semi-preserved, species not itemised) · grade B · Sanchezperez 2021
- histamine: mean 78 · standard deviation 63.55 · n=3 x10^-3 ppm · fresh weight (1 g portion) · canned light tuna (Dongwon 'Light Tuna Can'), BOILED (90 C) · grade B · Chung 2017
- histamine: mean 717 · standard deviation 161.52 · n=3 x10^-3 ppm · fresh weight (1 g portion) · canned light tuna (Dongwon 'Light Tuna Can'), GRILLED (150 C, no oil) · grade B · Chung 2017
- histamine: mean 6 · n not stated ppm · as sold · commercially canned tuna collected from retail stores, USA, survey conducted in 1981 · grade B · US FDA
- histamine: 18/20 below 100 mg/kg; range 0.30-332.24 mg/kg mg/kg · fresh weight · FRESH vacuum-packed yellowfin tuna loins (not canned), local fish markets, fishmongers and large retailers, Sardinia · grade B · Pais 2022
- histamine: mean 26.8 (lower bound) to 31.2 (upper bound); 73% not detected; P95 60.5-100; max 8910 · range 26.8–31.2 · 73% below the detection limit mg/kg · fresh weight · category 'Other fish and fish products' (fresh, frozen and canned fish, not tuna-specific) · grade B · EFSA 2011
- histamine: mean 8.8 · 14.3 (100 - detection rate 85.7)% below the detection limit mg/kg · as sold · category 'Canned fish' (not tuna-specific), Chinese market 2025 · grade B · Cao 2025
- histamine: mean 40.7 · range nd–81.4 · n=44 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned in water and salt · grade B · Diniz 2025
- histamine: mean 0.16 · range nd–1.01 · n=9 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned in water and salt · grade B · Diniz 2025
- histamine: not detected (nd) mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned in water and salt · grade B · Diniz 2025
- histamine: mean 0.82 · n=3 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned in water and salt · grade B · Diniz 2025
- histamine: mean 8.96 · n=3 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid LIGHT canned tuna · grade B · Diniz 2025
- histamine: mean 1.03 · range nd–2.06 · n=12 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, grated, canned in water and salt · grade B · Diniz 2025
- histamine: mean 1.32 · range nd–11.1 · n=9 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned IN OIL · grade B · Diniz 2025
- histamine: mean 8.9 · n=33 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned IN OIL · grade B · Diniz 2025
- histamine: mean 2.73 · range 2.0–5.0 · n=6 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned IN OIL · grade B · Diniz 2025
- histamine: mean 28 · range nd–56.0 · n=12 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, grated, canned IN OIL · grade B · Diniz 2025
- histamine: mean 9.57 · range nd–56.2 · n=12 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, grated, canned IN OIL · grade B · Diniz 2025
- histamine: mean 1.64 · range 1.0–3.0 · n=10 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, grated, canned IN OIL · grade B · Diniz 2025
- histamine: mean 18.6 · n=6 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, grated, canned IN OIL · grade B · Diniz 2025
- histamine: mean 20 · n=3 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, canned, packing medium not stated · grade B · Diniz 2025
- histamine: mean 11.1 · n=7 mg/kg · as sold (mg/kg or mg/L per the review's header) · canned tuna, solid, canned, medium not stated · grade B · Diniz 2025
- histamine: mean 28 · n 160 canned tuna mg/kg · as sold · canned tuna · grade B · Tun 2025
- histamine: mean 21.94 · n 12 canned tuna mg/kg · as sold · canned tuna · grade B · Tun 2025
- histamine: mean 5.22 · n 8 canned tuna mg/kg · as sold · canned tuna · grade B · Tun 2025
- histamine: mean 9.91 · n 37 canned tuna mg/kg · as sold · canned tuna · grade B · Tun 2025
- histamine: 4 of 13 positive (30.8%), range 4.2-17.0 mg/kg · as sold · canned bonito (the paper names it Katsuwonus pelamis, skipjack tuna); packing medium not stated; Polish retail 2014-2018 · grade B · Pawulgruba 2021
- histamine: maximum · n 1 sample per day mg/kg · fresh weight · FRESH tuna steak SEEDED with 1 g of tuna muscle naturally containing about 6000 mg/kg histamine, stored at 4 C, day 6 · grade C · Altafini 2022
- histamine: maximum · n 1 sample per day mg/kg · fresh weight · FRESH tuna steak SEEDED (about 6000 mg/kg muscle), stored at 12 C, day 6 · grade C · Altafini 2022
- tyramine: mean 8.23 · standard deviation 14.87 · range nd–88.5 · n=151 mg/kg · fresh weight · preserved and semi-preserved fish (canned and semi-preserved, species not itemised) · grade B · Sanchezperez 2021
- tyramine: mean 6.8 (lower bound) to 14.6 (upper bound); 86% not detected; P95 33.4; max 634 · range 6.8–14.6 · 86% below the detection limit · n=1281 mg/kg · fresh weight · category 'Other fish and fish products' (fresh, frozen, canned; not tuna-specific) · grade B · EFSA 2011
Sources
- Altafini A, Roncada P, Guerrini A, Sonfack GM, Accurso D, Caprai E. Development of Histamine in Fresh and Canned Tuna Steaks Stored under Different Experimental Temperature Conditions. Foods 2022;11(24):4034. · doi:10.3390/foods11244034
altafini2022· full text read · CC BY 4.0 - Cao P, Gao M, Huang D, Xu X, Liu Z, Liu Y, et al. Analysis of Five Biogenic Amines in Foods on the Chinese Market and Estimation of Acute Histamine Exposure from Fermented Foods in the Chinese Population. Foods 2025;14(14):2550. · doi:10.3390/foods14142550
cao2025· full text read · CC BY 4.0 - CFIA, Food Safety Action Plan Targeted Survey: Dioxins and Dioxin-like Compounds in Selected Foods 2014-2019 (data and 2-page overview PDF; report page inspection.canada.ca)
cfia-dioxins-2014-2019· dataset · Open Government Licence – Canada 2.0 - CFIA, Mercury and Metals in Fish Products 2000-2021 (tuna rows: 7,072; canned 2,388)
cfia-fish-metals-2000-2021· dataset · Open Government Licence – Canada 2.0 - Chung BY, Park SY, Byun YS, Son JH, Choi YW, Cho YS, Kim HO, Park CW. Effect of different cooking methods on histamine levels in selected foods. Ann Dermatol 2017;29(6):706-714. · doi:10.5021/ad.2017.29.6.706 · PMID 29200758
chung2017· full text read · CC BY-NC 4.0 - Health Canada, Canadian Nutrient File 2026 (14th edition)
cnf-2026· dataset · Open Government Licence – Canada 2.0 - Public Health England, Composition of Foods Integrated Dataset (CoFID) 2021
cofid-2021· dataset · Open Government Licence v3.0 - Crobu L, Mudadu AG, Melillo R, Pais GL, Meloni D. Qualitative determination of histamine in canned yellowfin tuna (Thunnus albacares) marketed in Sardinia (Italy) by rapid screening methods. Ital J Food Saf 2021;10(2):9379. · doi:10.4081/ijfs.2021.9379
crobu2021· full text read · CC BY-NC 4.0 - Dimitrijevic M, Stefanovic S, Karabasil N, Vasilev D, Cobanovic N, Ilic N, Djordjevic V. UPLC-MS/MS determination of histamine levels in canned fish collected from Belgrade retail markets. Meat Technology 2016;57(1):47-56.
dimitrijevic2016· full text read · open access (journal site) - Diniz FB, Dala-Paula BM, et al., Gloria MBA. Histamine in Brazilian Foods: A Comprehensive Review of Occurrence and Risk Assessment for Intoxication and Intolerance. Food Sci Nutr 2025;13(11):e71151. · doi:10.1002/fsn3.71151
diniz2025· full text read · CC BY 4.0 - EFSA Panel on Biological Hazards (BIOHAZ). Scientific opinion on risk based control of biogenic amine formation in fermented foods. EFSA Journal 2011;9(10):2393. · doi:10.2903/j.efsa.2011.2393
efsa2011· full text read · EFSA copyright (free to read) - Er B, Demirhan B, Bas SY, Yentur G, Oktem AB. Determination of histamine levels in canned tuna fish. Bulgarian Journal of Agricultural Science 2014;20(4):834-838.
er2014· full text read · journal PDF, openly hosted - US FDA. Decomposition and Histamine; Raw, Frozen Tuna and Mahi-Mahi; Canned Tuna; and Related Species; Availability of Revised Compliance Policy Guide. Federal Register 60(149):39754-39756, 3 August 1995 (95-19059).
fda1995fr· full text read · US government work - USDA FoodData Central, Foundation Foods, release 2026-04-30
fdc-foundation-2026-04-30· dataset · CC0 1.0 (public domain) - USDA FoodData Central, SR Legacy, 2018-04
fdc-sr-legacy-2018-04· dataset · CC0 1.0 (public domain) - Health Canada, Common food allergens (priority allergens list)
hc-priority-allergens· page · Government of Canada terms (Crown copyright; not OGL) - Kaneko K, et al. (2014) Total purine and purine base content of common foodstuffs for facilitating nutritional therapy for gout and hyperuricemia. Biol Pharm Bull 37(5):709-721 · doi:10.1248/bpb.b13-00967 · PMID 24553148
kaneko-2014-purines· secondary source · J-STAGE open access - Health Canada, Trends of bisphenol A occurrence in canned food products from 2008-2020
open-science-bpa-trends· secondary source · not checked - Pais GL, Crobu L, Mudadu AG, et al. Colorimetric Analysis and Determination of Histamine in Samples of Yellowfin Tuna (Thunnus albacares) Marketed in Sardinia (Italy) by a Combination of Rapid Screening Methods and LC-MS/MS. Foods 2022;11(5):639. · doi:10.3390/foods11050639
pais2022· full text read · CC BY 4.0 - Pawul-Gruba M, Osek J. Identification of Histamine in Fish and Fish Products in Poland During 2014-2018. J Vet Res 2021;65(4):483-486. · doi:10.2478/jvetres-2021-0066
pawulgruba2021· full text read · CC BY-NC-ND 3.0 - Sadeghi N, Behzad M, Jannat B, Oveisi MR, Hajimahmoodi M, Mozafari M. Determination of histamine in canned tuna fish available in Tehran market by ELISA method. J Food Safe & Hyg 2019;5(1):46-50. · doi:10.18502/jfsh.v5i1.3884
sadeghi2019· full text read · open access (journal site) - Sánchez-Pérez S et al. 2021, Nutrients 13:1395, Table 1 (histamine)
sanchezperez2021· full text read · CC BY 4.0 - Simunovic S, Jankovic S, Baltic T, Nikolic D, Djinovic-Stojanovic J, Lukic M, Parunovic N. Histamine in canned and smoked fishery products sold in Serbia. Meat Technology 2019;60(1):8-16. · doi:10.18485/meattech.2019.60.1.2
simunovic2019· full text read · open access (journal site) - Tunc S, Demirhan B, Er Demirhan B. Investigation of Histamine, Physicochemical Quality, and Potential Health Risks in Various Canned Fish Products. Foods 2025;14(13):2314. · doi:10.3390/foods14132314
tun2025· full text read · CC BY 4.0 - Tunç S, Demirhan B, Er Demirhan BE. Investigation of Histamine, Physicochemical Quality, and Potential Health Risks in Various Canned Fish Products. Foods 2025;14(13):2314 · doi:10.3390/foods14132314
tunc2025· full text read · not checked - USDA, FDA and ODS-NIH Database for the Iodine Content of Common Foods, Release 4.0 (October 2024; 478 foods). Prepared by Heydorn K, Wambogo E, Spungen JH, Ershow AG, Gahche JJ, Haggans C, Merkel J, Patterson KY, Pehrsson PR. USDA ARS Methods and Application of Food Composition Laboratory.
usda-iodine-db4· secondary source · US Government work (public domain; USDA ARS)
Body map 2026-10-25.1: each nutrient’s job comes from an agency fact sheet, linked beside it under Good for.
The plain words: “a lot” means one serving (100 g when the food has no serving size) gives at least 20% of the daily amount (the reference intake), “some” at least 10%, “a little” at least 2% (the cut-offs are ours, one set for every page: 20% and 10% are borrowed from the US labelling terms “high” and “good source” and applied to Health Canada’s daily amount, whereas Health Canada’s own shopper rule says 15%; provisional: they may change in a later method version). The daily amount is Health Canada’s Dietary Reference Intake for adults 19–30; where men and women need different amounts we use the higher one (protein: 56 g for men, 46 g for women). The percentage printed under each nutrient is the printed amount as a share of that daily amount, rounded to the nearest whole number, and the word is read from that percentage, so the amount, the percentage and the word always agree. Calcium with a measured absorption is scaled by how well it gets in compared with milk.
The scale: “Nothing to watch” means a serving a day stays under the limit at ordinary amounts; “Go easy” means a serving a day can push past the limit for adults who already take in the most, or fewer than 2 servings reach it; “Limit it” means once a week or less. The dataset’s own rating is under “How we got this”. Provisional: the scale may change in a later method version.
Measured absorption under Good for: grade-A studies in adults that tested this preparation of this food, as a share of the listed amount (the share digested, for protein), quoted once each source has passed our evidence check; animal studies and other variants stay in the table above. Provisional: this screen may change in a later method version.