Flax seeds
Per 100 g, Flax seeds provides 545 calories, 34.4 g carbohydrate, 18 g protein and 23.1 g fibre.
545kcal 27% RI Reference IntakeEU/UK adult daily energy reference of 2,000 kcal used on packaged-food nutrition labels (Reg. 1169/2011). Switch to the US toggle for FDA Daily Values.
65%Nutrient scoreNutrient ScoreThe share of this food's 24 rated nutrients that score well for its calories — a good source of beneficial nutrients while staying low in saturated fat, sodium and added sugars.24 available of 33 total nutrients with a Daily Value24of33
Protein18g13% kcal
Carbs34.4g25% kcal
Fat37.3g62% kcal
Fiber23.1g
Full nutrient breakdown
Reference
Proximates
- Protein ProteinBuilds and repairs tissue, drives enzymes and hormones. Made up of amino acids — nine of which the body can't make itself.UK adult RI: 50 G/day18.0G18.0G36%
- Fat FatAll fats combined: saturated, monounsaturated, polyunsaturated, and trans. Carries fat-soluble vitamins (A, D, E, K) and contributes 9 kcal per gram.UK adult RI: 70 G/day37.3G37.3G53%
- Total carbohydrate Total carbohydrateAll carbohydrate combined: sugars, starches, and fiber. Calculated by subtracting water + protein + fat + ash from the food's total mass — hence "by difference".UK adult RI: 260 G/day34.4G34.4G13%
- Fiber FiberPlant carbohydrate the body can't digest. Feeds gut bacteria, slows sugar absorption, and supports regular digestion. UK adults: target 30 g/day.UK adult RI: 30 G/day23.1G23.1G77%
Carbohydrates
- Sugars SugarsNaturally-occurring + added sugars combined (mono- and disaccharides).UK adult RI: 90 G/day1.55G1.55G2%
Fats and Fatty Acids
Sterols
Protein and Amino Acids
Vitamins
- Vitamin C Vitamin CWater-soluble antioxidant + cofactor in collagen synthesis. Lost easily in cooking water and air exposure.UK adult RI: 80 MG/day0.60MG0.60MG1%
- Vitamin B1 (thiamin) Vitamin B1 (thiamin)Water-soluble B-vitamin for carbohydrate metabolism and nerve function. Whole grains, pork, and legumes are good sources.UK adult RI: 1.1 MG/day0.54MG0.54MG49%
- Vitamin B2 (riboflavin) Vitamin B2 (riboflavin)Water-soluble B-vitamin for energy production, cell growth, and skin health. Dairy, eggs, and lean meat are densest.UK adult RI: 1.4 MG/day0.16MG0.16MG12%
- Vitamin B3 (niacin) Vitamin B3 (niacin)Water-soluble B-vitamin for energy metabolism. The body can also make some niacin from the amino acid tryptophan.UK adult RI: 16 MG/day3.76MG3.76MG23%
- Vitamin B6 Vitamin B6Water-soluble B-vitamin for amino acid metabolism and neurotransmitter synthesis.UK adult RI: 1.4 MG/day0.39MG0.39MG28%
- Folate FolateWater-soluble B-vitamin essential for DNA synthesis and cell division. Critical pre-conception and in early pregnancy to prevent neural tube defects.UK adult RI: 200 UG/day41.0UG41.0UG21%
- Vitamin B12 Vitamin B12Water-soluble B-vitamin essential for red blood cell formation and the nervous system. Only found naturally in animal foods — vegans need fortified foods or supplements.UK adult RI: 2.5 UG/day0UG0UG0%
- Vitamin A Vitamin AFat-soluble vitamin for vision, immune function, and skin. Measured in retinol activity equivalents (RAE) so plant and animal sources are comparable.UK adult RI: 800 UG/day0UG0UG0%
- Vitamin E Vitamin EFat-soluble antioxidant that protects cell membranes from oxidative damage. Nuts, seeds, and vegetable oils are the densest sources.UK adult RI: 12 MG/day0MG0MG0%
- Vitamin D Vitamin DFat-soluble vitamin essential for calcium absorption and bone health. The skin also synthesises it from sunlight, so dietary intake matters most over winter.UK adult RI: 5 UG/day0UG0UG0%
- Vitamin K Vitamin KFat-soluble vitamin essential for blood clotting and bone metabolism. Concentrated in dark leafy greens.UK adult RI: 75 UG/day3.70UG3.70UG5%
Minerals
- Calcium CalciumMajor mineral for bone density, muscle contraction, and nerve signalling.UK adult RI: 800 MG/day230MG230MG29%
- Iron IronCarries oxygen in haemoglobin. Plant (non-heme) iron absorbs less efficiently than meat (heme) iron — pair with vitamin C to boost absorption.UK adult RI: 14 MG/day5.78MG5.78MG41%
- Magnesium MagnesiumCofactor in 300+ enzyme reactions — energy metabolism, muscle relaxation, blood pressure regulation.UK adult RI: 375 MG/day372MG372MG99%
- Phosphorus PhosphorusMajor mineral for bones, energy storage (ATP), and cell membranes. Widespread in protein-rich foods.UK adult RI: 700 MG/day556MG556MG79%
- Potassium PotassiumElectrolyte mineral that counters sodium's effect on blood pressure. Concentrated in fruit, vegetables, beans, and dairy.UK adult RI: 2,000 MG/day793MG793MG40%
- Sodium SodiumMineral mostly consumed as salt (sodium chloride). Excess raises blood pressure in salt-sensitive people.UK adult RI: 2,400 MG/day37.0MG37.0MG2%
- Zinc ZincTrace mineral for immune function, wound healing, and sense of taste. Best absorbed from animal foods; phytates in grains reduce uptake.UK adult RI: 10 MG/day4.74MG4.74MG47%
- Copper CopperTrace mineral involved in iron metabolism and connective tissue.UK adult RI: 1 MG/day1.34MG1.34MG134%
- Selenium SeleniumTrace mineral that supports thyroid hormone metabolism and antioxidant defence. Brazil nuts are the densest source.UK adult RI: 55 UG/day136UG136UG247%
Other
Flax seeds: key facts
Good source of
- How many calories are in Flax seeds?
- Flax seeds has 545 calories per 100 g.
- How much protein is in Flax seeds?
- Flax seeds provides 18 g of protein per 100 g.
- How many carbs are in Flax seeds?
- Flax seeds contains 34.4 g of carbohydrate per 100 g, including 23.1 g of fibre.
- How much fat is in Flax seeds?
- Flax seeds has 37.3 g of fat per 100 g.
Values shown for the selected serving and per 100 g. % RI follows the UK / EU Reference Intakes (Reg. 1169/2011) for adults and children 4 + years. Reference only — not medical or dietary advice (Terms & Conditions §3).