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Fish oil vs. Flax seeds — In-Depth Nutrition Comparison

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Significant differences between Fish oil and Flax seeds

  • Flax seeds is richer than Fish oil in Vitamin B1, Copper, Fiber, Manganese, Magnesium, Phosphorus, Iron, and Selenium.
  • Fish oil covers your daily Cholesterol needs 255% more than Flax seeds.
  • Fish oil has 6 times more Saturated Fat than Flax seeds. Fish oil has 21.29g of Saturated Fat, while Flax seeds has 3.663g.
  • Flax seeds is lower in Cholesterol.

Specific food types used in this comparison are Fish oil, herring and Seeds, flaxseed.

Infographic

Fish oil vs Flax seeds infographic
Infographic link

Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 280% 77% 72% 215% 407% 118% 275% 3.9% 324% 139%
Contains less SodiumSodium -100%
Contains more MagnesiumMagnesium +∞%
Contains more CalciumCalcium +∞%
Contains more PotassiumPotassium +∞%
Contains more IronIron +∞%
Contains more CopperCopper +∞%
Contains more ZincZinc +∞%
Contains more PhosphorusPhosphorus +∞%
Contains more ManganeseManganese +∞%
Contains more SeleniumSelenium +∞%

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 2% 0% 6.2% 0% 411% 37% 58% 59% 109% 0% 11% 65% 43%
Contains more Vitamin CVitamin C +∞%
Contains more Vitamin B1Vitamin B1 +∞%
Contains more Vitamin B2Vitamin B2 +∞%
Contains more Vitamin B3Vitamin B3 +∞%
Contains more Vitamin B5Vitamin B5 +∞%
Contains more Vitamin B6Vitamin B6 +∞%
Contains more FolateFolate +∞%
~equal in Vitamin A ~0IU
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~0µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
100%
Protein: 0 g
Fats: 100 g
Carbs: 0 g
Water: 0 g
Other: 0 g
18% 42% 29% 7% 4%
Protein: 18.29 g
Fats: 42.16 g
Carbs: 28.88 g
Water: 6.96 g
Other: 3.71 g
Contains more FatsFats +137.2%
Contains more ProteinProtein +∞%
Contains more CarbsCarbs +∞%
Contains more WaterWater +∞%
Contains more OtherOther +∞%

Fat Type Comparison

Fat type breakdown side-by-side comparison
23% 61% 17%
Saturated Fat: Sat. Fat 21.29 g
Monounsaturated Fat: Mono. Fat 56.564 g
Polyunsaturated fat: Poly. Fat 15.604 g
9% 19% 72%
Saturated Fat: Sat. Fat 3.663 g
Monounsaturated Fat: Mono. Fat 7.527 g
Polyunsaturated fat: Poly. Fat 28.73 g
Contains more Mono. FatMonounsaturated Fat +651.5%
Contains less Sat. FatSaturated Fat -82.8%
Contains more Poly. FatPolyunsaturated fat +84.1%

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Fish oil Flax seeds
Lower in Cholesterol ok
Lower in Saturated Fat ok
Lower in price ok
Rich in minerals ok
Rich in vitamins ok
Lower in Sugar ok
Lower in Sodium ok
Lower in Glycemic Index ok

All nutrients comparison - raw data values

Nutrient Fish oil Flax seeds Opinion
Calories 902kcal 534kcal Fish oil
Protein 0g 18.29g Flax seeds
Fats 100g 42.16g Fish oil
Vitamin C 0mg 0.6mg Flax seeds
Net carbs 0g 1.58g Flax seeds
Carbs 0g 28.88g Flax seeds
Cholesterol 766mg 0mg Flax seeds
Magnesium 0mg 392mg Flax seeds
Calcium 0mg 255mg Flax seeds
Potassium 0mg 813mg Flax seeds
Iron 0mg 5.73mg Flax seeds
Sugar 1.55g Fish oil
Fiber 0g 27.3g Flax seeds
Copper 0mg 1.22mg Flax seeds
Zinc 0mg 4.34mg Flax seeds
Phosphorus 0mg 642mg Flax seeds
Sodium 0mg 30mg Fish oil
Vitamin E 0.31mg Flax seeds
Manganese 0mg 2.482mg Flax seeds
Selenium 0µg 25.4µg Flax seeds
Vitamin B1 0mg 1.644mg Flax seeds
Vitamin B2 0mg 0.161mg Flax seeds
Vitamin B3 0mg 3.08mg Flax seeds
Vitamin B5 0mg 0.985mg Flax seeds
Vitamin B6 0mg 0.473mg Flax seeds
Vitamin K 4.3µg Flax seeds
Folate 0µg 87µg Flax seeds
Choline 78.7mg Flax seeds
Saturated Fat 21.29g 3.663g Flax seeds
Monounsaturated Fat 56.564g 7.527g Fish oil
Polyunsaturated fat 15.604g 28.73g Flax seeds
Tryptophan 0.297mg Flax seeds
Threonine 0.766mg Flax seeds
Isoleucine 0.896mg Flax seeds
Leucine 1.235mg Flax seeds
Lysine 0.862mg Flax seeds
Methionine 0.37mg Flax seeds
Phenylalanine 0.957mg Flax seeds
Valine 1.072mg Flax seeds
Histidine 0.472mg Flax seeds
Omega-3 - EPA 6.273g 0g Fish oil
Omega-3 - DHA 4.206g 0g Fish oil
Omega-3 - DPA 0.619g 0g Fish oil
Omega-6 - Eicosadienoic acid 0.007g Flax seeds

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Fish oil Flax seeds
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low Glycemic Index diet ok

Vitamins & Minerals Daily Need Coverage Score

The summary scores indicate the extent to which this food can fulfill your daily vitamin and mineral requirements if you consume 3 servings, consisting of 100 grams of each (an approximation of 3 serving sizes).
Vitamins Daily Need Coverage Score
0%
Fish oil
62%
Flax seeds
Minerals Daily Need Coverage Score
0%
Fish oil
191%
Flax seeds

Comparison summary

Which food is lower in Cholesterol?
Flax seeds
Flax seeds is lower in Cholesterol (difference - 766mg)
Which food is lower in Saturated Fat?
Flax seeds
Flax seeds is lower in Saturated Fat (difference - 17.627g)
Which food is cheaper?
Flax seeds
Flax seeds is cheaper (difference - $2)
Which food is richer in minerals?
Flax seeds
Flax seeds is relatively richer in minerals
Which food is richer in vitamins?
Flax seeds
Flax seeds is relatively richer in vitamins
Which food is lower in Sugar?
Fish oil
Fish oil is lower in Sugar (difference - 1.55g)
Which food contains less Sodium?
Fish oil
Fish oil contains less Sodium (difference - 30mg)
Which food is lower in glycemic index?
Fish oil
Fish oil is lower in glycemic index (difference - 0)

References

All the values for which the sources are not specified explicitly are taken from FDA’s Food Central. The exact link to the food presented on this page can be found below.

  1. Fish oil - https://fdc.nal.usda.gov/fdc-app.html#/food-details/172340/nutrients
  2. Flax seeds - https://fdc.nal.usda.gov/fdc-app.html#/food-details/169414/nutrients

All the Daily Values are presented for males aged 31-50, for 2000-calorie diets.

Data provided by FoodStruct.com should be considered and used as information only. Please consult your physician before beginning any diet.