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A small pile of frozen blueberries

Blueberries, frozen

Checked by us One serving: 80 g (about ½ cup) · 41 kcal

Some vitamin K1.

Nothing to watch for most people.

On warfarin? Keep your vitamin K steady.

Good for

How we counted this

What one serving (80 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.

21 more nutrients at a little or less

Watch out

How we counted this
Checked for cadmium and lead: fine at normal amounts.
  • Cadmium

    Nothing to watch

    You’d need more than 100 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 0.07 µg

    How we got this

    A serving a day adds 0.4% 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 71% 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, 190,000 g a week would reach the limit.

    Why this rating: Eating it daily comes to 560 g a week, which stays within the 57,000 g of room left before the limit.

    The dataset’s rating: Nothing to watch: under the limit

    A daily serving adds 0.41% 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.

    Health Canada, Canadian Total Diet Study – Trace Elements (2005–2018 composites) · grade B

    Every food with cadmium

  • Lead

    Nothing to watch

    You’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 0.8% to what an average adult already takes in. There is no limit to take a share of.

    One serving carries 0.29 µg

    How we got this

    The dataset’s rating: Nothing to watch: doesn’t double average intake

    A daily serving adds about 0.8% to the average adult's lead intake (35 µg/day): 0.75% without the 1999 composite (mean 3.27 µg/kg), 0.6% on the three most recent (2.61); FDA Total Diet Study mean 0.71 µg/kg (3 of 27 detected, reporting limit 4): +0.16%. No safe threshold is set for lead; far from doubling it, so no cap.

    Health Canada, Canadian Total Diet Study – Trace Elements (2005–2018 composites) · grade B

    Every food with lead

For some people

  • With warfarin: keep vitamin K intake consistent (label), not avoid.

    Learn more

    Eat a steady amount, not none. This line goes on every food whose serving gives 10% or more of the daily vitamin K; a few foods below that carry it too, where a source names them. One serving here has about 13 µg of vitamin K1.

Worth knowing

No limit applies, so none is rated.

  • Sugar

    6.8 g of sugar in a 80 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 checked (nothing to act on) · 1

Noted for context, or not measured in this food yet.

  • Shown as context. Frozen berries are 'expected to be consumed without cooking' (CFIA 2020), and Canadian measurements are low: CFIA's 2016-2021 retail survey found norovirus GII RNA in 1 frozen blueberry sample among 3,292 frozen fruit samples (15 of 4,218 overall, 0.36%) and no hepatitis A RNA; its 2017-2020 bacterial survey (2,595 frozen ready-to-eat samples) found Salmonella, E. coli O157 and generic E. coli above 100 MPN/g in none, and one Listeria monocytogenes sample under 5 CFU/g in a domestic blueberry. Wild blueberries from Quebec and New Brunswick: 0 of 150 positive for hepatitis E virus. Health Canada's cook-first advice names frozen vegetables, not berries, and no Canadian agency tells people to boil frozen berries; boiling advice for imported frozen berries comes from Ireland and New Zealand.

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, 80 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.

Compared with the other fruits we’ve checked.

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 K1

  • Kiwi, raw32.2 µg in 80 g (this food: 13.1 µg)

Amounts as listed, not adjusted for how much gets in.

More nutrients per serving, counted together

The other fruits 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.

  • Kiwi, raw
    • More vitamin C (59.8 mg vs 2 mg)
    • More vitamin K1 (32.2 µg vs 13.1 µg)
  • Mango, rawMore vitamin C (29.1 mg vs 2 mg)
  • Pineapple, raw
    • More vitamin C (46.9 mg vs 2 mg)
    • Less vitamin K1 (0.56 µg vs 13.1 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.

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: Blueberry, frozen, unsweetened

How the serving was set: 80 g (Health Canada J.2, blueberries, raspberries, blackberries)

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.

NutrientPer servingPer 100 caloriesHowSourceGrade
Omega-3: ALA0.112 g0.09 g0.22 glisted usedUS food database (USDA SR Legacy) #173950C
Calcium8 mg6.4 mg15.69 mglisted usedUS food database (USDA SR Legacy) #173950C
8 mg6.4 mg15.69 mgcopy of USDA · not usedCanadian Nutrient File 2026 #1706C
Carbohydrate12.17 g9.74 g23.86 glisted usedUS food database (USDA SR Legacy) #173950C
Choline5.1 mg4.08 mg10 mglisted usedUS food database (USDA SR Legacy) #173950C
Energy51 kcal40.8 kcal–FDC Energy (kcal) usedUS food database (USDA SR Legacy)–
Omega-3: EPA + DHA0 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
Fat0.64 g0.51 g1.25 glisted usedUS food database (USDA SR Legacy) #173950C
Cholesterol0 mg0 mg0 mglisted usedUS food database (USDA SR Legacy) #173950C
Fatty acids, total saturated0.053 g0.04 g0.1 glisted usedUS food database (USDA SR Legacy) #173950C
Fibre2.7 g2.16 g5.29 glisted usedUS food database (USDA SR Legacy) #173950C
Folate7 µg5.6 µg13.73 µglisted usedUS food database (USDA SR Legacy) #173950C
Iron0.18 mg0.14 mg0.35 mglisted usedUS food database (USDA SR Legacy) #173950C
Magnesium5 mg4 mg9.8 mglisted usedUS food database (USDA SR Legacy) #173950C
Niacin (B3, niacin equivalents)0.553 mg0.44 mg1.08 mglisted usedCanadian Nutrient File 2026 #1706C
Phosphorus11 mg8.8 mg21.57 mglisted usedUS food database (USDA SR Legacy) #173950C
Potassium54 mg43.2 mg105.88 mglisted usedUS food database (USDA SR Legacy) #173950C
Protein0.42 g0.34 g0.82 glisted usedUS food database (USDA SR Legacy) #173950C
Riboflavin (B2)0.037 mg0.03 mg0.07 mglisted usedUS food database (USDA SR Legacy) #173950C
Selenium0.1 µg0.08 µg0.2 µglisted usedUS food database (USDA SR Legacy) #173950C
Sodium1 mg0.8 mg1.96 mglisted usedUS food database (USDA SR Legacy) #173950C
Sugars8.45 g6.76 g16.57 glisted usedUS food database (USDA SR Legacy) #173950C
Thiamin (B1)0.032 mg0.03 mg0.06 mglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin A2 µg1.6 µg3.92 µglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin B120 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin B60.059 mg0.05 mg0.12 mglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin C2.5 mg2 mg4.9 mglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin D0 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin E0.48 mg0.38 mg0.94 mglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin K116.4 µg13.12 µg32.16 µglisted usedUS food database (USDA SR Legacy) #173950C
Water86.59 g69.27 g169.78 glisted usedUS food database (USDA SR Legacy) #173950C
Zinc0.07 mg0.06 mg0.14 mglisted usedUS food database (USDA SR Legacy) #173950C
NutrientPer 100 gPer servingPer 100 caloriesHowSourceGrade
Beta-carotene28 µg22.4 µg54.9 µglisted usedUS food database (USDA SR Legacy) #173950C
Copper0.033 mg0.03 mg0.06 mglisted usedUS food database (USDA SR Legacy) #173950C
Ash0.18 g0.14 g0.35 glisted usedUS food database (USDA SR Legacy) #173950C
Alcohol, ethyl0 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
Caffeine0 mg0 mg0 mglisted usedUS food database (USDA SR Legacy) #173950C
Theobromine0 mg0 mg0 mglisted usedUS food database (USDA SR Legacy) #173950C
Energy213 kj170.4 kj417.65 kjlisted usedUS food database (USDA SR Legacy) #173950C
Vitamin A, IU46 iu36.8 iu90.2 iulisted usedUS food database (USDA SR Legacy) #173950C
Carotene, alpha0 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin D (D2 + D3), International Units0 iu0 iu0 iulisted usedUS food database (USDA SR Legacy) #173950C
Cryptoxanthin, beta0 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C
Lycopene0 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C
Folic acid0 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C
Folate, food7 µg5.6 µg13.73 µglisted usedUS food database (USDA SR Legacy) #173950C
Folate, DFE7 µg5.6 µg13.73 µglisted usedUS food database (USDA SR Legacy) #173950C
Tryptophan0.002 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
Threonine0.012 g0.01 g0.02 glisted usedUS food database (USDA SR Legacy) #173950C
Isoleucine0.013 g0.01 g0.03 glisted usedUS food database (USDA SR Legacy) #173950C
Leucine0.025 g0.02 g0.05 glisted usedUS food database (USDA SR Legacy) #173950C
Lysine0.008 g0.01 g0.02 glisted usedUS food database (USDA SR Legacy) #173950C
Methionine0.007 g0.01 g0.01 glisted usedUS food database (USDA SR Legacy) #173950C
Cystine0.004 g0 g0.01 glisted usedUS food database (USDA SR Legacy) #173950C
Phenylalanine0.015 g0.01 g0.03 glisted usedUS food database (USDA SR Legacy) #173950C
Tyrosine0.005 g0 g0.01 glisted usedUS food database (USDA SR Legacy) #173950C
Valine0.018 g0.01 g0.04 glisted usedUS food database (USDA SR Legacy) #173950C
Arginine0.022 g0.02 g0.04 glisted usedUS food database (USDA SR Legacy) #173950C
Histidine0.006 g0 g0.01 glisted usedUS food database (USDA SR Legacy) #173950C
Alanine0.018 g0.01 g0.04 glisted usedUS food database (USDA SR Legacy) #173950C
Aspartic acid0.033 g0.03 g0.06 glisted usedUS food database (USDA SR Legacy) #173950C
Glutamic acid0.052 g0.04 g0.1 glisted usedUS food database (USDA SR Legacy) #173950C
Glycine0.017 g0.01 g0.03 glisted usedUS food database (USDA SR Legacy) #173950C
Proline0.015 g0.01 g0.03 glisted usedUS food database (USDA SR Legacy) #173950C
Serine0.013 g0.01 g0.03 glisted usedUS food database (USDA SR Legacy) #173950C
Vitamin E, added0 mg0 mg0 mglisted usedUS food database (USDA SR Legacy) #173950C
Vitamin B-12, added0 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C
Fatty acids, total trans0 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 4:00 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 6:00 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 8:00 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 10:00 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 12:00 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 14:00 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 16:00.031 g0.02 g0.06 glisted usedUS food database (USDA SR Legacy) #173950C
SFA 18:00.011 g0.01 g0.02 glisted usedUS food database (USDA SR Legacy) #173950C
MUFA 18:10.087 g0.07 g0.17 glisted usedUS food database (USDA SR Legacy) #173950C
PUFA 18:20.167 g0.13 g0.33 glisted usedUS food database (USDA SR Legacy) #173950C
PUFA 18:30.112 g0.09 g0.22 glisted usedUS food database (USDA SR Legacy) #173950C
PUFA 20:40 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
PUFA 22:6 n-3 (DHA)0 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
MUFA 16:10.002 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
PUFA 18:40 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
MUFA 20:10 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
PUFA 20:5 n-3 (EPA)0 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
MUFA 22:10 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
PUFA 22:5 n-3 (DPA)0 g0 g0 glisted usedUS food database (USDA SR Legacy) #173950C
Fatty acids, total monounsaturated0.091 g0.07 g0.18 glisted usedUS food database (USDA SR Legacy) #173950C
Fatty acids, total polyunsaturated0.279 g0.22 g0.55 glisted usedUS food database (USDA SR Legacy) #173950C
Lutein + zeaxanthin68 µg54.4 µg133.33 µglisted usedUS food database (USDA SR Legacy) #173950C
Manganese0.147 mg0.12 mg0.29 mglisted usedUS food database (USDA SR Legacy) #173950C
Niacin (B3, preformed)0.52 mg0.42 mg1.02 mglisted usedUS food database (USDA SR Legacy) #173950C
Pantothenic acid (B5)0.125 mg0.1 mg0.25 mglisted usedUS food database (USDA SR Legacy) #173950C
Retinol0 µg0 µg0 µglisted usedUS food database (USDA SR Legacy) #173950C

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

  • Cadmium · Nothing to watch: under the limit · A daily serving adds 0.41% 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. · Health Canada Total Diet Study, trace elements · B
  • Lead · Nothing to watch: doesn’t double average intake · A daily serving adds about 0.8% to the average adult's lead intake (35 µg/day): 0.75% without the 1999 composite (mean 3.27 µg/kg), 0.6% on the three most recent (2.61); FDA Total Diet Study mean 0.71 µg/kg (3 of 27 detected, reporting limit 4): +0.16%. No safe threshold is set for lead; far from doubling it, so no cap. · Health Canada Total Diet Study, trace elements · B
  • Uncooked frozen berries · Context · Shown as context. Frozen berries are 'expected to be consumed without cooking' (CFIA 2020), and Canadian measurements are low: CFIA's 2016-2021 retail survey found norovirus GII RNA in 1 frozen blueberry sample among 3,292 frozen fruit samples (15 of 4,218 overall, 0.36%) and no hepatitis A RNA; its 2017-2020 bacterial survey (2,595 frozen ready-to-eat samples) found Salmonella, E. coli O157 and generic E. coli above 100 MPN/g in none, and one Listeria monocytogenes sample under 5 CFU/g in a domestic blueberry. Wild blueberries from Quebec and New Brunswick: 0 of 150 positive for hepatitis E virus. Health Canada's cook-first advice names frozen vegetables, not berries, and no Canadian agency tells people to boil frozen berries; boiling advice for imported frozen berries comes from Ireland and New Zealand. · PubMed 35905649 · A

Sources

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.