Wild blueberries, frozen

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.

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

Oxalate, phytate and gut-tolerance measurements

• fodmap excess fructose: derived: 3.71 minus 3.33; 0.30 g in an 80 g serving g/100 g · fresh weight (frozen product) · Blueberries, wild, frozen (SR 173949) · grade B · US food database (USDA SR Legacy)

Sources

• Health Canada, Canadian Nutrient File 2026 (14th edition)
  cnf-2026 · dataset · Open Government Licence – Canada 2.0
• USDA FoodData Central, SR Legacy, 2018-04
  fdc-sr-legacy-2018-04 · dataset · CC0 1.0 (public domain)
• Health Canada, Canadian Total Diet Study – Trace Elements (2005–2018 composites)
  hc-tds-trace-elements · dataset · Open Government Licence – Canada 2.0
• Steele M, Lambert D, Bissonnette R, Yamamoto E, Hardie K, Locas A (CFIA). Norovirus GI and GII and hepatitis A virus in berries and pomegranate arils in Canada. Int J Food Microbiol 2022 Oct 16 · doi:10.1016/j.ijfoodmicro.2022.109840 · PMID 35905649
  pmid:35905649 · abstract only · Publisher copyright (journal article)

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.