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A pile of chia seeds

Chia seeds

Checked by us One serving: 15 g · 74 kcal

Lots of omega-3: ALA.

Nothing to watch for most people so far.

Worth knowing for some people: choking risk under age 4; nickel for people who are sensitised.

Good for

How we counted this

What one serving (15 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.

18 more nutrients below “a lot”

Missing from our databases for this food, so left out, not counted as zero: vitamin A, vitamin K1 and choline.

Watch out

How we counted this
Checked for aluminum, cadmium, glyphosate residues, lead and ochratoxin A: fine at normal amounts.

For some people

  • Health Canada: seeds are not safe for children younger than four years. Dry chia swells in liquid, which makes it a swallowing and obstruction concern for adults who take it dry; no agency statement on that was found.

  • Flagged for people with nickel contact allergy: EFSA's 2020 lowest-observed-adverse-effect level is 4.3 µg Ni/kg body weight (301 µg at 70 kg). A 15.0 g serving carries 31 µg, 0.44 µg/kg body weight, a margin of 9.8 to that level; EFSA treats a margin of 30 or more as low concern. About 147 g would reach the level, and 4.9 g would give a margin of 30.

  • Measured, not rated: 70.5 mg oxalate

    Learn more

    We haven’t rated this food for oxalate. We count only a figure that comes from a grade A or B source and says it was measured per 100 g of the food as eaten, and none of the figures here does both.

    How we got this

    Not rated for calcium-oxalate stone formers: the only source is a patient-foundation list (one brand, no stated method). A 15.0 g serving carries 70.5 mg oxalate, a moderate portion by the list's bands (25-99 mg); 100 g would be in its very-high band.

    Oxalosis and Hyperoxaluria Foundation. Oxalate list (022724), 2024 · grade B

    Every food with oxalate for kidney-stone formers

Also measured in it

Figures from the dataset. None has a limit to be rated against, so none is a verdict.

  • Phytate, as the source gives it: Ins P6 1.5-2.6 g/100 g dry matter across 8 commercial chia samples from 7 Latin American countries (mean of the 8: 2.19) g phytate (InsP6)/100 g dry matter (dry matter) · Vera 2023 · grade A

    Phytate (also written InsP6, IP6 or phytic acid), the form in which plants store phosphorus, is found in whole grains, beans and nuts. It binds zinc in the gut and lowers how much zinc and plant (non-heme) iron you absorb. No limit applies.

    Source: NIH Office of Dietary Supplements, Zinc fact sheet · NIH Office of Dietary Supplements, Iron fact sheet

Also checked (nothing to act on) · 4

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

  • Not measured in this food yet. Not rated: no chia-specific aflatoxin figure exists in EFSA's 2020 occurrence tables, and CFIA has no chia aflatoxin survey. EFSA's unspecified 'other seeds' line (n 71, aflatoxin B1 mean 4.069 µg/kg at the lower bound, 4.621 at the upper bound, 72% left-censored) is not chia and is not used; linseed (n 175) is a different seed.

  • Context only (pesticide residues are not scored): 4 positives in 146 screens, none flagged as violations except the two glyphosate results above.

  • Context only, and about a different product: sprouted chia seed powder (dried, ground, sprouted seeds), not whole dry chia seed. No survey of Salmonella in whole chia was found; the 2012 Irish nut-and-seed survey (FSAI 10NS1) listed no chia sample among its top varieties.

  • Shown as context, not rated: a single recall event on whole dry chia seed, not an occurrence rate. The CFIA recall notice of 2026-01-20 covered one lot of Left Coast Organics Organic Chia Seeds (900 g, best-before 26 NO 13 and 26 NO 14, sold in ON, AB, BC, MB, SK), Class 2, triggered by a recall in another country; no illnesses were reported. The CFIA said its food safety investigation may lead to other recalls. A US recall (Navitas Organics, January 2026) was seen in press snippets only.

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, 15 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 toppings 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

For omega-3: ALA: Flaxseed, ground would lead, in the same 15 g, but is left out (Cyanogenic glycosides: go easy).

None of the 5 other toppings we could compare gives clearly more nutrients per serving.

Your goal

Your goal changes only this list, not what the food gives you or what to watch.

None of the 5 other toppings we could compare gives clearly more nutrients, protein and fibre per calorie.

Why some foods aren’t suggested

Left out: Flaxseed, ground (Cyanogenic glycosides: go easy).

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: Chia seeds, dried, whole

How the serving was set: 15 g (Health Canada TRA item C.5, 'Bran and wheat germ, pearl tapioca, milled flax, hemp and chia seeds', reference amount 15 g; the nuts-and-seeds item O.1 is 30 g shelled)

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: ALA17.83 g2.67 g3.64 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Calcium595.4 mg89.31 mg121.49 mglisted usedUS food database (USDA Foundation Foods) #2710819C
631 mg94.65 mg128.75 mgcopy of USDA · not usedCanadian Nutrient File 2026 #2511C
Carbohydrate38.273 g5.74 g7.81 glisted usedUS food database (USDA Foundation Foods) #2710819C
Energy490.096 kcal73.51 kcal–FDC Energy (Atwater Specific Factors) usedUS food database (USDA Foundation Foods)–
486 kcal72.9 kcal–from SR Legacy · not usedUS food database (USDA SR Legacy) #170554C
Omega-3: EPA + DHA0 g0 g0 glisted usedCanadian Nutrient File 2026 #2511C
Fat32.89 g4.93 g6.71 glisted usedUS food database (USDA Foundation Foods) #2710819C
Cholesterol0 mg0 mg0 mgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Fatty acids, total saturated3.33 g0.5 g0.68 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Fibre34.4 g5.16 g7.02 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Folate49 µg7.35 µg10 µgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Iron6.043 mg0.91 mg1.23 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Magnesium326.3 mg48.95 mg66.58 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Niacin (B3, niacin equivalents)16.097 mg2.41 mg3.28 mglisted usedCanadian Nutrient File 2026 #2511C
Phosphorus691.3 mg103.7 mg141.05 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Potassium642.1 mg96.32 mg131.02 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Protein17.013 g2.55 g3.47 glisted usedUS food database (USDA Foundation Foods) #2710819C
Riboflavin (B2)0.17 mg0.03 mg0.03 mgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Selenium55.2 µg8.28 µg11.26 µgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Sodium0 mg0 mg0 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Thiamin (B1)0.5 mg0.08 mg0.1 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Vitamin B120 µg0 µg0 µgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Vitamin B60.202 mg0.03 mg0.04 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Vitamin C1.6 mg0.24 mg0.33 mgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Vitamin D0 µg0 µg0 µglisted usedCanadian Nutrient File 2026 #2511C
Vitamin E0.5 mg0.08 mg0.1 mgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Water7.451 g1.12 g1.52 glisted usedUS food database (USDA Foundation Foods) #2710819C
Zinc5.556 mg0.83 mg1.13 mglisted usedUS food database (USDA Foundation Foods) #2710819C
NutrientPer 100 gPer servingPer 100 caloriesHowSourceGrade
Copper1.566 mg0.23 mg0.32 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Energy (Atwater general)517.154 kcal77.57 kcal105.52 kcallisted usedUS food database (USDA Foundation Foods) #2710819C
Energy (Atwater specific)490.096 kcal73.51 kcal100 kcallisted usedUS food database (USDA Foundation Foods) #2710819C
Nitrogen3.21 g0.48 g0.65 glisted usedUS food database (USDA Foundation Foods) #2710819C
Ash4.373 g0.66 g0.89 glisted usedUS food database (USDA Foundation Foods) #2710819C
Starch0 g0 g0 glisted usedUS food database (USDA Foundation Foods) #2710819C
Energy2,034 kj305.1 kj415.02 kjfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Vitamin A, IU54 iu8.1 iu11.02 iufrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Biotin14.51 µg2.18 µg2.96 µglisted usedUS food database (USDA Foundation Foods) #2710819C
Folate, food49 µg7.35 µg10 µgfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Tryptophan0.436 g0.07 g0.09 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Threonine0.709 g0.11 g0.14 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Isoleucine0.801 g0.12 g0.16 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Leucine1.371 g0.21 g0.28 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Lysine0.97 g0.15 g0.2 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Methionine0.588 g0.09 g0.12 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Cystine0.407 g0.06 g0.08 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Phenylalanine1.016 g0.15 g0.21 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Tyrosine0.563 g0.08 g0.11 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Valine0.95 g0.14 g0.19 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Arginine2.143 g0.32 g0.44 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Histidine0.531 g0.08 g0.11 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Alanine1.044 g0.16 g0.21 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Aspartic acid1.689 g0.25 g0.34 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Glutamic acid3.5 g0.53 g0.71 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Glycine0.943 g0.14 g0.19 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Proline0.776 g0.12 g0.16 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Serine1.049 g0.16 g0.21 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Fatty acids, total trans0.14 g0.02 g0.03 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
SFA 14:00.03 g0 g0.01 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
SFA 16:02.17 g0.33 g0.44 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
SFA 18:00.912 g0.14 g0.19 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
SFA 20:00.093 g0.01 g0.02 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
MUFA 18:12.203 g0.33 g0.45 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
PUFA 18:25.835 g0.88 g1.19 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
PUFA 18:317.83 g2.67 g3.64 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
PUFA 22:6 n-3 (DHA)0 g0 g0 glisted usedCanadian Nutrient File 2026 #2511C
SFA 22:00.032 g0 g0.01 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
MUFA 14:10.03 g0 g0.01 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
MUFA 16:10.029 g0 g0.01 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
MUFA 20:10.046 g0.01 g0.01 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
PUFA 20:5 n-3 (EPA)0 g0 g0 glisted usedCanadian Nutrient File 2026 #2511C
Fatty acids, total monounsaturated2.309 g0.35 g0.47 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Fatty acids, total polyunsaturated23.665 g3.55 g4.83 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
SFA 15:00.03 g0 g0.01 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
SFA 17:00.063 g0.01 g0.01 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
PUFA 18:2 n-6 c,c5.835 g0.88 g1.19 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
MUFA 17:10 g0 g0 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
PUFA 18:3 n-3 c,c,c (ALA)17.83 g2.67 g3.64 gfrom SR Legacy usedUS food database (USDA SR Legacy) #170554C
Manganese7.558 mg1.13 mg1.54 mglisted usedUS food database (USDA Foundation Foods) #2710819C
Niacin (B3, preformed)8.678 mg1.3 mg1.77 mglisted usedUS food database (USDA Foundation Foods) #2710819C

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

  • Aflatoxins · Not rated yet · Not rated: no chia-specific aflatoxin figure exists in EFSA's 2020 occurrence tables, and CFIA has no chia aflatoxin survey. EFSA's unspecified 'other seeds' line (n 71, aflatoxin B1 mean 4.069 µg/kg at the lower bound, 4.621 at the upper bound, 72% left-censored) is not chia and is not used; linseed (n 175) is a different seed. · EFSA 2020 · C
  • Aluminum · Nothing to watch: under the limit · No cap: EFSA's tolerable weekly intake for aluminium is 1 mg/kg body weight/week, 70,000 µg a week for 70 kg. Eaten alone, about 1,540 g of chia a week would reach it at the highest CFIA annual mean of 45.5 ppm (23,400 g at the lowest, 2.99). A 15.0 g serving every day is 105 g a week: 4,780 µg, 6.8% of the limit at 45.5 ppm and 41% at the single highest sample (273 ppm, 28.7 mg). Chia carries 37 to 78 times the aluminium of the three nuts in this family. · CFIA chemical residue monitoring (2016–2023) · A
  • Cadmium · Nothing to watch: under the limit · A daily serving adds 0.77% 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 chemical residue monitoring (2016–2023) · A
  • Choking risk under age 4 · Worth knowing · Health Canada: seeds are not safe for children younger than four years. Dry chia swells in liquid, which makes it a swallowing and obstruction concern for adults who take it dry; no agency statement on that was found. · Health Canada, Nutrition for Healthy Term Infants: Recommendations… · A
  • Glyphosate residues · Nothing to watch: under the limit · No cap: EFSA's 2023 acceptable daily intake for glyphosate is 0.5 mg/kg body weight/day, 35,000 µg a day at 70 kg. The mean of 0.248 ppm covers positives only (2 of 9 samples), so the grams are a floor: about 141,000 g of chia a day would reach the limit. A 15.0 g serving at the highest positive mean is 3.7 µg, 0.01% of it. The two violations were of Canada's maximum residue limit, not of a health-based limit. · CFIA chemical residue monitoring (2016–2023) · A
  • Lead · Nothing to watch: doesn’t double average intake · No cap: no safe limit is set for lead; EFSA's 2010 reference point is a benchmark dose lower limit (BMDL01) of 0.5 µg/kg body weight/day. Judged by what a serving adds to the average adult's intake of about 35 µg/day (EFSA 2012): 15 g at 27.3 µg/kg adds 0.41 µg, about 1.2%. The single highest sample (145 µg/kg) would give 2.2 µg in a serving, 6%. · CFIA chemical residue monitoring (2016–2023) · A
  • Nickel · Nothing to watch: under the limit · No cap: EFSA's 2020 tolerable daily intake for nickel is 13 µg/kg body weight/day, 910 µg a day at 70 kg. Eaten alone, about 444 g of chia a day would reach it. A 15.0 g serving is 31 µg, 3.4% of the limit, and adds 14% to the adult background median of 3.16 µg/kg body weight/day (221 µg/day), 11-22% across the survey range. · CFIA chemical residue monitoring (2016–2023) · A
  • Nickel for people who are sensitised · Worth knowing · Flagged for people with nickel contact allergy: EFSA's 2020 lowest-observed-adverse-effect level is 4.3 µg Ni/kg body weight (301 µg at 70 kg). A 15.0 g serving carries 31 µg, 0.44 µg/kg body weight, a margin of 9.8 to that level; EFSA treats a margin of 30 or more as low concern. About 147 g would reach the level, and 4.9 g would give a margin of 30. · EFSA 2020 · A
  • Ochratoxin A · Nothing to watch: doesn’t double average intake · No cap: no safe limit is set for ochratoxin A; EFSA's 2020 reference point is a benchmark dose lower limit (BMDL10) of 14.5 µg/kg body weight/day (14,500 ng/kg body weight/day). A 15.0 g serving at the lower-bound mean of 0.07684 ng/g carries 1.15 ng, 0.0165 ng/kg body weight/day at 70 kg; the maximum sample (1.14 ng/g) would give 17 ng, 0.24 ng/kg body weight/day. The margin to the BMDL10 is about 880,000 at the mean. Chia is the one food in this family with a real ochratoxin signal in the CFIA survey (18 of 44 samples detected). · CFIA ochratoxin A survey (2012–2022) · A
  • Oxalate for kidney-stone formers · Not rated yet · Not rated for calcium-oxalate stone formers: the only source is a patient-foundation list (one brand, no stated method). A 15.0 g serving carries 70.5 mg oxalate, a moderate portion by the list's bands (25-99 mg); 100 g would be in its very-high band. · Oxalosis and Hyperoxaluria Foundation 2024 · B
  • Pesticide residues · Context · Context only (pesticide residues are not scored): 4 positives in 146 screens, none flagged as violations except the two glyphosate results above. · CFIA chemical residue monitoring (2016–2023) · A
  • Salmonella · Context · Context only, and about a different product: sprouted chia seed powder (dried, ground, sprouted seeds), not whole dry chia seed. No survey of Salmonella in whole chia was found; the 2012 Irish nut-and-seed survey (FSAI 10NS1) listed no chia sample among its top varieties. · PHAC 2014 · A
  • Salmonella · Context · Shown as context, not rated: a single recall event on whole dry chia seed, not an occurrence rate. The CFIA recall notice of 2026-01-20 covered one lot of Left Coast Organics Organic Chia Seeds (900 g, best-before 26 NO 13 and 26 NO 14, sold in ON, AB, BC, MB, SK), Class 2, triggered by a recall in another country; no illnesses were reported. The CFIA said its food safety investigation may lead to other recalls. A US recall (Navitas Organics, January 2026) was seen in press snippets only. · CFIA 2026 · A

Oxalate, phytate and gut-tolerance measurements

  • fodmap fructan: fructan plus galacto-oligosaccharides combined 0.36 ± 0.00 g/100 g dry matter (n 2) g/100 g dry matter (fructan + GOS) · dry matter · chia seeds as a raw material for crackers (the paper grinds chia in a coffee grinder below 500 µm before dough use; whether the assayed sample was ground is not stated) · grade A · Rados 2022
  • oxalate total: 470 mg/100 g · not stated (list gives 'avg oxalate per 100 g') · chia seeds, one brand · grade B · Oxalosis and Hyperoxaluria Foundation 2024
  • phytate: Ins P6 1.5-2.6 g/100 g dry matter across 8 commercial chia samples from 7 Latin American countries (mean of the 8: 2.19) g phytate (InsP6)/100 g dry matter · dry matter · commercial chia seeds (sample preparation for assay not re-read) · grade A · Vera 2023

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.