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A sample week, audited

What came with your food over 7 logged days, then what your body got from it. Hazards first, because that's the part a tracker doesn't show.

A made-up week of ordinary eating: oats most mornings, canned white tuna three times, rice four times, spinach salads, almonds. It runs through exactly the audit your own diary would. It is nobody's real diary.

Check your week

Your week, briefly

  1. Methylmercury: 154% of the weekly limit, mostly from canned albacore (white) tuna.

    Of that, 61% comes from canned albacore (white) tuna, so a change there would count most.

    The dataset rates this food as once a week or less.

    Stricter limit for women who are or may become pregnant, and children: 350% of the daily limit on the heaviest day.

    A weekly limit is a long-run average: what counts is a pattern of weeks like this, not one week.

  2. Zinc: 10 mg a day listed. Of the 5.8 mg from ground beef, oatmeal, whole milk, white rice and roast chicken breast, the foods a study measured, about 0.9–1.4 mg would get in, at the rates the studies measured.

    Derived: an estimate, as some portions sit far from the dose a study tested.

  3. Enough? Short: calcium. Iron: enough for men, short for women. Zinc and magnesium: enough for women, short for men. Enough: protein, vitamin B12 and selenium.

  4. Not checked: Fish, tuna, white, canned in water, without salt, drained solids; Potato, french-fried, frozen, restaurant prepared, fried in vegetable oil; Cereal, ready to eat, Corn Flakes, Kellogg's; Peanut butter, natural: not reviewed yet, so this check can miss what they carry.

Most limits are per kilo of body weight, so a lighter person reaches them sooner, and protein’s reference intake is per kilo too. 70 kg is the adult default the dataset rates at. Used on this page only; never saved or sent.

How this week was counted · 20 of 25 foods reviewed; the rest imported or unmatched

25 foods in the diary: 20 reviewed, 4 imported with category defaults, 0 imported with no known hazard rule, 1 unmatched and not counted.

Monday, October 5 to Sunday, October 11, 7 days logged · 7 supplement entries kept aside · data v0.6 / method v0.4

What came with it

Hazards with a health-based limit, added up over your diary: each food's grams against the grams that reach the limit, in the limit's own window. The percentage is how much of the limit you used.

  1. The form of mercury that builds up in fish, most of all in large predatory fish. Can harm a developing brain, before birth and in childhood.

    154% of the weekly limit

    Over the limit, and Tuna, canned (white/albacore), in water, drained is most of it. A weekly limit is a long-run average: for most adults, one week over isn't a sign of harm, but a pattern of weeks like this is exactly what the limit is there to stop.

    Show 1 more food

    Stricter limit for women who are or may become pregnant, and children: 350% of the daily limit on Friday, October 9, the heaviest day; 143% on an average day

    Across the agency's surveys, the average adult already gets 0.07–1.08 µg/kg bw/week from their whole diet. That's 5.4%–83% of the limit before this diary. We don't know yours, so it isn't added to your figure.

  2. Forms in some fish as they spoil, faster when they are kept warm, and in fermented foods. A big dose in one meal brings on flushing, headache and an upset stomach.

    61% of the one-sitting limit at Dinner on Saturday, October 10, the heaviest sitting

    Your heaviest sitting used 61% of the limit, from Salmon, Atlantic, farmed, cooked (baked or broiled). Close, not over.

    Also carried, not counted (1)
  3. A metal in soil and water that gets into crops, shellfish and organ meats. Builds up in the kidneys over years.

    38% of the weekly limit

    Under the limit on its own: 38% of it. But Spinach, raw can push past the limit: one serving a day is more than the room left once an average adult’s intake is counted.

    Show 17 more foods

    The average adult already gets 1.77 µg/kg bw/week from their whole diet. That's 71% of the limit before this diary. So this isn’t room to spare. We don't know yours, so it isn't added to your figure.

  4. High doses upset the stomach.

    23% of the daily limit on Wednesday, October 7, the heaviest day; 11% on an average day

    Well under the daily limit, even on the heaviest day.

    Stricter limit for general population: 1.5% of the one-sitting limit at Lunch on Monday, October 5, the heaviest sitting

    Across the agency's surveys, the average adult already gets 0.3–0.7 µg/kg bw/day from their whole diet. That's 30%–70% of the limit before this diary. We don't know yours, so it isn't added to your figure.

  5. Plant compounds that release cyanide when the food is chewed or crushed, as in flaxseed and bitter almonds.

    9.6% of the one-sitting limit at Snacks on Monday, October 5, the heaviest sitting

    Well under the limit in every sitting.

    Also carried, not counted (1)

No safe level

For these, the agencies found no intake without effect, so there is no limit and no "safe" line. What the dataset rates instead is how much a food adds to the average adult's exposure. Your figures are that rating, scaled to what you ate on an average day.

  1. Long exposure raises the risk of liver cancer.

    Adds 12–181% to the average adult's intake

    No safe dose has been found, so there's no line to stay under. At the top of the range, this diary adds more than the average adult's whole dietary intake, mostly from Almonds, raw. The range is the spread in the agencies' own estimates of that average.

    The average adult's intake from their whole diet, across the agency's surveys: 0.22–3.25 ng/kg bw/day. We don't know yours, so it isn't added to your figure.

    Also carried, not counted (1)
  2. Long, high exposure raises the risk of skin cancer.

    Adds 30–152% to the average adult's intake

    No safe dose has been found, so there's no line to stay under. At the top of the range, this diary adds more than the average adult's whole dietary intake, mostly from Rice, white, long-grain, regular, unenriched, cooked without salt. The range is the spread in the agencies' own estimates of that average.

    The average adult's intake from their whole diet, across the agency's surveys: 0.03–0.15 µg/kg bw/day. We don't know yours, so it isn't added to your figure.

    Also carried, not counted (1)
  3. Forms when starchy foods are fried, baked or roasted at high heat: fries, chips, toast, coffee.

    Adds 5.5–12% to the average adult's intake

    No safe dose has been found, so there's no line to stay under, only less or more. This diary adds 5.5–12% to the average adult's intake, mostly from Oats, rolled, cooked with water.

    The average adult's intake from their whole diet, across the agency's surveys: 0.4–0.9 µg/kg bw/day. We don't know yours, so it isn't added to your figure.

    Also carried, not counted (2)
  4. In children it acts on the developing brain; in adults, on blood pressure and the kidneys.

    Adds 11% to the average adult's intake

    No safe dose has been found, so there's no line to stay under, only less or more. This diary adds 11% to the average adult's intake, mostly from Oats, rolled, cooked with water.

    Show 18 more foods

    The average adult's intake from their whole diet: 0.5 µg/kg bw/day. We don't know yours, so it isn't added to your figure.

  5. Acts on the kidneys.

    Adds 2–7.2% to the average adult's intake

    No safe dose has been found, but this is a small addition: 2–7.2% on top of the average adult's intake, mostly from Rice, white, long-grain, regular, unenriched, cooked without salt.

    The average adult's intake from their whole diet, across the agency's surveys: 0.00166–0.00603 µg/kg bw/day. We don't know yours, so it isn't added to your figure.

    Also carried, not counted (1)

Carried, not counted

Hazards your foods carry with no amount the audit can add up: the dataset has no concentration for them, or shows them only for context. They're listed so you know they're there.

What this check didn’t cover

These 4 foods aren’t reviewed yet. We haven’t checked them ourselves: their hazards count only where their food group has a default, and their nutrients are as the databases list them.

Enough, and how much gets in

Was it enough? Each nutrient’s listed amount, a day on average, against the reference intake: Health Canada’s figure for adults aged 19 to 30, the higher of the men’s and the women’s. Reference intakes are amounts to eat on a typical mixed diet, its usual absorption already built in, so they’re compared with the listed amount, never the absorbed one. The absorbed figure answers another question: which foods give less than their label says. 1 entry has no weight or no match, so a “short” below may read low.

A day, on average over 7 logged days. Struck: what the label lists, from foods where a study measured how much gets in. Written: what those studies found reached the body. Everything else is listed, not absorption-adjusted.

What grabs minerals so less gets in

Compounds that grab minerals in the gut, where the dataset has them measured for your foods.

Flags, not subtractions. Oxalate grabs calcium and matters most if you've had calcium-oxalate kidney stones; phytate does the same to iron and zinc. Nothing here is taken off the absorbed figures above.

Your receipt

The week as one image, made in this browser. It shows only what you tick.

Include on the image

The image is drawn on your device. Nothing is uploaded.

Where every number comes from

Each figure above links here. Study details and source notes are in English.

Show the 91 sources
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  7. CFIA, Food Safety Action Plan Targeted Survey - Deoxynivalenol in Selected Foods - 2011-2012
  8. CFIA, Mercury and Metals in Fish Products 2000-2021 (tuna rows: 7,072; canned 2,388)
  9. CFIA, Multi-Mycotoxins in Corn Products, Crackers, Other Grain Products, Pasta and Gluten-Free Products, 2018–2019
  10. CFIA, Food Safety Action Plan Targeted Survey - Ochratoxin A in Selected Foods, 2012-2018 and 2019-2022
  11. CFIA, Ochratoxin A in Wheat Products, Oat Products, Rice Products and Other Grain Products, April 1 2018 to March 31 2019 (495 samples; 99 'Grain - Rice')
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  22. EFSA CONTAM Panel (2019). Evaluation of the health risks related to the presence of cyanogenic glycosides in foods other than raw apricot kernels. EFSA Journal 17(4):5662
  23. EFSA CONTAM Panel (2020) Risk assessment of aflatoxins in food. EFSA Journal 18(3):6040
  24. EFSA CONTAM Panel (2020) Risk assessment of glycoalkaloids in feed and food, in particular in potatoes and potato-derived products. EFSA Journal 18(8):6222
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  29. FAO/INFOODS, Phytate and phytic-acid composition database PhyFoodComp 1.0 (2018), sheet 01 rows 01060075, 01060076, 01060219-01060222
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  31. US FDA, Mercury Levels in Commercial Fish and Shellfish (1990-2012)
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  33. US FDA, Total Diet Study FY2018–FY2020 Elements Report Supplement
  34. USDA FoodData Central, Foundation Foods, release 2026-04-30
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  49. Oxalosis and Hyperoxaluria Foundation, Oxalate food content database: grains (bread rows)
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  55. Bohn T, Davidsson L, Walczyk T, Hurrell RF. Phytic acid added to white-wheat bread inhibits fractional apparent magnesium absorption in humans. Am J Clin Nutr 2004;79:418-23
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  63. Islam MM, Woodhouse LR, Hossain MB, et al. Total zinc absorption from a diet containing either conventional rice or higher-zinc rice does not differ among Bangladeshi preschool children. J Nutr 2013
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  86. Rivera-Martin et al. 2021 (broccoli oxalate and phytate)
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Information about foods, not medical advice. If a number here worries you, take it and its source to your doctor or a dietitian.