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Flatfish vs. Octopus — In-Depth Nutrition Comparison

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How are Flatfish and Octopus different?

  • Flatfish is higher in Vitamin D, however, Octopus is richer in Vitamin B12, Iron, Selenium, Copper, Vitamin B6, Zinc, Vitamin B3, and Vitamin B5.
  • Daily need coverage for Vitamin B12 from Octopus is 1445% higher.
  • Flatfish has less Cholesterol.

Fish, flatfish (flounder and sole species), cooked, dry heat and Mollusks, octopus, common, cooked, moist heat are the varieties used in this article.

Infographic

Flatfish vs Octopus 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.
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%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 43% 32% 56% 358% 246% 92% 120% 60% 6.1% 489%
Contains less SodiumSodium -21.1%
Contains more MagnesiumMagnesium +172.7%
Contains more CalciumCalcium +324%
Contains more PotassiumPotassium +219.8%
Contains more IronIron +4047.8%
Contains more CopperCopper +3113%
Contains more ZincZinc +761.5%
Contains more ManganeseManganese +176.5%
Contains more SeleniumSelenium +174.8%
~equal in Phosphorus ~279mg

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% 2.2% 15% 105% 6.5% 5.8% 24% 14% 27% 164% 0.25% 4.5% 44%
Octopus
10
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 27% 18% 24% 0% 14% 18% 71% 54% 150% 4500% 0.25% 18% 44%
Contains more Vitamin DVitamin D +∞%
Contains more Vitamin CVitamin C +∞%
Contains more Vitamin AVitamin A +710.8%
Contains more Vitamin EVitamin E +55.8%
Contains more Vitamin B1Vitamin B1 +119.2%
Contains more Vitamin B2Vitamin B2 +204%
Contains more Vitamin B3Vitamin B3 +195.8%
Contains more Vitamin B5Vitamin B5 +296.5%
Contains more Vitamin B6Vitamin B6 +463.5%
Contains more Vitamin B12Vitamin B12 +2648.1%
Contains more FolateFolate +300%
~equal in Vitamin K ~0.1µg
~equal in Choline ~81mg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
15% 2% 81%
Protein: 15.24 g
Fats: 2.37 g
Carbs: 0 g
Water: 81.11 g
Other: 1.28 g
30% 2% 4% 61% 3%
Protein: 29.82 g
Fats: 2.08 g
Carbs: 4.4 g
Water: 60.5 g
Other: 3.2 g
Contains more FatsFats +13.9%
Contains more WaterWater +34.1%
Contains more ProteinProtein +95.7%
Contains more CarbsCarbs +∞%
Contains more OtherOther +150%

Fat Type Comparison

Fat type breakdown side-by-side comparison
33% 40% 28%
Saturated Fat: Sat. Fat 0.542 g
Monounsaturated Fat: Mono. Fat 0.657 g
Polyunsaturated fat: Poly. Fat 0.459 g
36% 26% 38%
Saturated Fat: Sat. Fat 0.453 g
Monounsaturated Fat: Mono. Fat 0.324 g
Polyunsaturated fat: Poly. Fat 0.477 g
Contains more Mono. FatMonounsaturated Fat +102.8%
Contains less Sat. FatSaturated Fat -16.4%
~equal in Polyunsaturated fat ~0.477g

Comparison summary table

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

All nutrients comparison - raw data values

Nutrient Flatfish Octopus Opinion
Calories 86kcal 164kcal Octopus
Protein 15.24g 29.82g Octopus
Fats 2.37g 2.08g Flatfish
Vitamin C 0mg 8mg Octopus
Net carbs 0g 4.4g Octopus
Carbs 0g 4.4g Octopus
Cholesterol 56mg 96mg Flatfish
Vitamin D 139IU 0IU Flatfish
Magnesium 22mg 60mg Octopus
Calcium 25mg 106mg Octopus
Potassium 197mg 630mg Octopus
Iron 0.23mg 9.54mg Octopus
Copper 0.023mg 0.739mg Octopus
Zinc 0.39mg 3.36mg Octopus
Phosphorus 309mg 279mg Flatfish
Sodium 363mg 460mg Flatfish
Vitamin A 37IU 300IU Octopus
Vitamin A 12µg 90µg Octopus
Vitamin E 0.77mg 1.2mg Octopus
Vitamin D 3.5µg 0µg Flatfish
Manganese 0.017mg 0.047mg Octopus
Selenium 32.6µg 89.6µg Octopus
Vitamin B1 0.026mg 0.057mg Octopus
Vitamin B2 0.025mg 0.076mg Octopus
Vitamin B3 1.278mg 3.78mg Octopus
Vitamin B5 0.227mg 0.9mg Octopus
Vitamin B6 0.115mg 0.648mg Octopus
Vitamin B12 1.31µg 36µg Octopus
Vitamin K 0.1µg 0.1µg
Folate 6µg 24µg Octopus
Trans Fat 0.014g Octopus
Choline 79.9mg 81mg Octopus
Saturated Fat 0.542g 0.453g Octopus
Monounsaturated Fat 0.657g 0.324g Flatfish
Polyunsaturated fat 0.459g 0.477g Octopus
Tryptophan 0.197mg 0.334mg Octopus
Threonine 0.719mg 1.283mg Octopus
Isoleucine 0.754mg 1.298mg Octopus
Leucine 1.335mg 2.099mg Octopus
Lysine 1.561mg 2.228mg Octopus
Methionine 0.56mg 0.673mg Octopus
Phenylalanine 0.624mg 1.069mg Octopus
Valine 0.8mg 1.303mg Octopus
Histidine 0.374mg 0.573mg Octopus
Omega-3 - EPA 0.168g 0.152g Flatfish
Omega-3 - DHA 0.132g 0.162g Octopus
Omega-3 - DPA 0.034g 0.012g Flatfish
Omega-6 - Eicosadienoic acid 0.006g Flatfish

Which food is preferable for your diet?

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

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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
32%
Flatfish
380%
Octopus
Minerals Daily Need Coverage Score
43%
Flatfish
150%
Octopus

Comparison summary

Which food is lower in Saturated Fat?
Octopus
Octopus is lower in Saturated Fat (difference - 0.089g)
Which food is lower in glycemic index?
Octopus
Octopus is lower in glycemic index (difference - 0)
Which food is richer in minerals?
Octopus
Octopus is relatively richer in minerals
Which food is richer in vitamins?
Octopus
Octopus is relatively richer in vitamins
Which food is lower in Cholesterol?
Flatfish
Flatfish is lower in Cholesterol (difference - 40mg)
Which food contains less Sodium?
Flatfish
Flatfish contains less Sodium (difference - 97mg)
Which food contains less Sugar?
?
The foods are relatively equal in Sugar (0 g)
Which food is cheaper?
?
The foods are relatively equal in price ($)

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. Flatfish - https://fdc.nal.usda.gov/fdc-app.html#/food-details/174197/nutrients
  2. Octopus - https://fdc.nal.usda.gov/fdc-app.html#/food-details/174249/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.