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Crab vs. Flatfish — In-Depth Nutrition Comparison

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Significant differences between crab and flatfish

  • Crab has more copper, vitamin B12, zinc, selenium, vitamin B5, folate, and vitamin B3; however, flatfish is richer in vitamin D and phosphorus.
  • Crab covers your daily copper needs 88% more than flatfish.
  • Flatfish has 10 times less zinc than crab. Crab has 3.81mg of zinc, while flatfish has 0.39mg.
  • Flatfish contains less cholesterol.

Specific food types used in this comparison are Crustaceans, crab, blue, canned and Fish, flatfish (flounder and sole species), cooked, dry heat.

Infographic

Crab vs Flatfish infographic
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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.
Crab
8
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 26% 27% 23% 19% 271% 104% 100% 73% 9.7% 234%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 16% 7.5% 17% 8.6% 7.7% 11% 132% 47% 2.2% 178%
Contains more MagnesiumMagnesium +63.6%
Contains more CalciumCalcium +264%
Contains more PotassiumPotassium +31.5%
Contains more IronIron +117.4%
Contains more CopperCopper +3439.1%
Contains more ZincZinc +876.9%
Contains more ManganeseManganese +335.3%
Contains more SeleniumSelenium +31.6%
Contains more PhosphorusPhosphorus +32.1%
Contains less SodiumSodium -35.5%

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.
Crab
9
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 11% 0.33% 37% 0% 5.8% 21% 52% 60% 36% 416% 0.75% 38% 44%
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% 4% 15% 53% 6.5% 5.8% 24% 14% 27% 164% 0.25% 4.5% 44%
Contains more Vitamin CVitamin C +∞%
Contains more Vitamin EVitamin E +139%
Contains more Vitamin B2Vitamin B2 +272%
Contains more Vitamin B3Vitamin B3 +114.9%
Contains more Vitamin B5Vitamin B5 +339.2%
Contains more Vitamin B6Vitamin B6 +35.7%
Contains more Vitamin B12Vitamin B12 +154.2%
Contains more Vitamin KVitamin K +200%
Contains more FolateFolate +750%
Contains more Vitamin AVitamin A +1100%
Contains more Vitamin DVitamin D +∞%
Contains more Vitamin B1Vitamin B1 +13%
~equal in Choline ~79.9mg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
Crab
2
18% 80% 2%
Protein: 17.88 g
Fats: 0.74 g
Carbs: 0 g
Water: 79.69 g
Other: 1.69 g
15% 2% 81%
Protein: 15.24 g
Fats: 2.37 g
Carbs: 0 g
Water: 81.11 g
Other: 1.28 g
Contains more ProteinProtein +17.3%
Contains more OtherOther +32%
Contains more FatsFats +220.3%
~equal in Carbs ~0g
~equal in Water ~81.11g

Fat Type Comparison

Fat type breakdown side-by-side comparison
Crab
1
34% 22% 44%
Saturated fat: Sat. Fat 0.201 g
Monounsaturated fat: Mono. Fat 0.129 g
Polyunsaturated fat: Poly. Fat 0.258 g
33% 40% 28%
Saturated fat: Sat. Fat 0.542 g
Monounsaturated fat: Mono. Fat 0.657 g
Polyunsaturated fat: Poly. Fat 0.459 g
Contains less Sat. FatSaturated fat -62.9%
Contains more Mono. FatMonounsaturated fat +409.3%
Contains more Poly. FatPolyunsaturated fat +77.9%

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Crab Flatfish
Lower in Cholesterol ok
Lower in Sodium ok
Lower in price ok
Lower in Saturated fat ok
Rich in minerals ok
Rich in vitamins ok
Lower in Sugar Equal
Lower in Glycemic Index Equal

All nutrients comparison - raw data values

Nutrient Crab Flatfish DV% diff.
Copper 0.814mg 0.023mg 88%
Vitamin B12 3.33µg 1.31µg 84%
Zinc 3.81mg 0.39mg 31%
Selenium 42.9µg 32.6µg 19%
Vitamin D 0µg 3.5µg 18%
Vitamin D 0IU 139IU 17%
Vitamin B5 0.997mg 0.227mg 15%
Cholesterol 97mg 56mg 14%
Phosphorus 234mg 309mg 11%
Folate 51µg 6µg 11%
Sodium 563mg 363mg 9%
Vitamin B3 2.747mg 1.278mg 9%
Calcium 91mg 25mg 7%
Vitamin E 1.84mg 0.77mg 7%
Vitamin B2 0.093mg 0.025mg 5%
Protein 17.88g 15.24g 5%
Vitamin C 3.3mg 0mg 4%
Vitamin B6 0.156mg 0.115mg 3%
Magnesium 36mg 22mg 3%
Fats 0.74g 2.37g 3%
Iron 0.5mg 0.23mg 3%
Manganese 0.074mg 0.017mg 2%
Potassium 259mg 197mg 2%
Saturated fat 0.201g 0.542g 2%
Polyunsaturated fat 0.258g 0.459g 1%
Vitamin A 1µg 12µg 1%
Monounsaturated fat 0.129g 0.657g 1%
Calories 83kcal 86kcal 0%
Vitamin B1 0.023mg 0.026mg 0%
Vitamin K 0.3µg 0.1µg 0%
Trans fat 0.014g 0.014g N/A
Choline 80.9mg 79.9mg 0%
Tryptophan 0.226mg 0.197mg 0%
Threonine 0.727mg 0.719mg 0%
Isoleucine 0.776mg 0.754mg 0%
Leucine 1.307mg 1.335mg 0%
Lysine 1.386mg 1.561mg 0%
Methionine 0.452mg 0.56mg 0%
Phenylalanine 0.708mg 0.624mg 0%
Valine 0.806mg 0.8mg 0%
Histidine 0.393mg 0.374mg 0%
Omega-3 - EPA 0.101g 0.168g N/A
Omega-3 - DHA 0.067g 0.132g N/A
Omega-3 - DPA 0.009g 0.034g N/A
Omega-6 - Eicosadienoic acid 0.005g 0.006g N/A

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Crab Flatfish
Low Calories diet ok
Low Fats diet ok
Low Carbs diet Equal
Low Glycemic Index diet Equal

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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
56%
Crab
28%
Flatfish
Minerals Daily Need Coverage Score
89%
Crab
43%
Flatfish

Comparison summary

Which food is lower in Cholesterol?
Flatfish
Flatfish is lower in Cholesterol (difference - 41mg)
Which food contains less Sodium?
Flatfish
Flatfish contains less Sodium (difference - 200mg)
Which food is cheaper?
Flatfish
Flatfish is cheaper (difference - $12)
Which food is lower in Saturated fat?
Crab
Crab is lower in Saturated fat (difference - 0.341g)
Which food is richer in minerals?
Crab
Crab is relatively richer in minerals
Which food is richer in vitamins?
Crab
Crab is relatively richer in vitamins
Which food contains less Sugar?
?
The foods are relatively equal in Sugar (0 g)
Which food is lower in glycemic index?
?
The foods have equal glycemic indexes (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. Crab - https://fdc.nal.usda.gov/fdc-app.html#/food-details/171966/nutrients
  2. Flatfish - https://fdc.nal.usda.gov/fdc-app.html#/food-details/174197/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.