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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% 0.12% 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% 2.2% 15% 105% 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 +1750%
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 Opinion
Calories 83kcal 86kcal Flatfish
Protein 17.88g 15.24g Crab
Fats 0.74g 2.37g Flatfish
Vitamin C 3.3mg 0mg Crab
Cholesterol 97mg 56mg Flatfish
Vitamin D 0IU 139IU Flatfish
Magnesium 36mg 22mg Crab
Calcium 91mg 25mg Crab
Potassium 259mg 197mg Crab
Iron 0.5mg 0.23mg Crab
Copper 0.814mg 0.023mg Crab
Zinc 3.81mg 0.39mg Crab
Phosphorus 234mg 309mg Flatfish
Sodium 563mg 363mg Flatfish
Vitamin A 2IU 37IU Flatfish
Vitamin A 1µg 12µg Flatfish
Vitamin E 1.84mg 0.77mg Crab
Vitamin D 0µg 3.5µg Flatfish
Manganese 0.074mg 0.017mg Crab
Selenium 42.9µg 32.6µg Crab
Vitamin B1 0.023mg 0.026mg Flatfish
Vitamin B2 0.093mg 0.025mg Crab
Vitamin B3 2.747mg 1.278mg Crab
Vitamin B5 0.997mg 0.227mg Crab
Vitamin B6 0.156mg 0.115mg Crab
Vitamin B12 3.33µg 1.31µg Crab
Vitamin K 0.3µg 0.1µg Crab
Folate 51µg 6µg Crab
Trans Fat 0.014g 0.014g
Choline 80.9mg 79.9mg Crab
Saturated Fat 0.201g 0.542g Crab
Monounsaturated Fat 0.129g 0.657g Flatfish
Polyunsaturated fat 0.258g 0.459g Flatfish
Tryptophan 0.226mg 0.197mg Crab
Threonine 0.727mg 0.719mg Crab
Isoleucine 0.776mg 0.754mg Crab
Leucine 1.307mg 1.335mg Flatfish
Lysine 1.386mg 1.561mg Flatfish
Methionine 0.452mg 0.56mg Flatfish
Phenylalanine 0.708mg 0.624mg Crab
Valine 0.806mg 0.8mg Crab
Histidine 0.393mg 0.374mg Crab
Omega-3 - EPA 0.101g 0.168g Flatfish
Omega-3 - DHA 0.067g 0.132g Flatfish
Omega-3 - DPA 0.009g 0.034g Flatfish
Omega-6 - Eicosadienoic acid 0.005g 0.006g Flatfish

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
32%
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.