NutriBase

Crustaceans, Crab vs Fish, Mackerel: Nutrition Comparison

Compare calories, protein, fat, carbs, vitamins and minerals per 100 g. Values shaded green are generally the more favorable ones.

Fish & Seafood Crustaceans, Crab 83 kcal · 100 g VS Fish & Seafood Fish, Mackerel 139 kcal · 100 g

Key differences

  • Fish, Mackerel has more calories; Crustaceans, Crab is lower in calories.
  • Fish, Mackerel has more protein per 100 g.
  • Crustaceans, Crab is notably higher in calcium.
  • Fish, Mackerel is notably higher in potassium.
  • Crustaceans, Crab is notably higher in vitamin c.

Nutrient comparison (per 100 g)

Nutrient Crustaceans, Crab Fish, Mackerel
Calories 83 kcal 139 kcal
Protein 17.9 g 19.3 g
Total Fat 0.7 g 6.3 g
Saturated Fat 0.2 g 1.8 g
Carbohydrate 0 g 0 g
Dietary Fiber 0 g 0 g
Total Sugars 0 g 0 g
Sodium 563 mg 59 mg
Potassium 259 mg 446 mg
Calcium 91 mg 11 mg
Iron 0.5 mg 0.4 mg
Magnesium 36 mg 33 mg
Vitamin C 3.3 mg 1.6 mg
Vitamin A 1 mcg 39 mcg
Vitamin D 0 mcg 7.3 mcg
Cholesterol 97 mg 76 mg

Green highlighting marks the more favorable value where it applies (for example, more protein or less saturated fat). Neutral nutrients are not highlighted.

Data source: USDA FoodData Central. Values are per 100 g of edible portion and are reference figures — they vary by variety, preparation and brand. Last updated: 2026-04-30.

Crustaceans, Crab

  • Protein 91.5%
  • Fat 8.5%
  • Carbs 0%

Fish, Mackerel

  • Protein 57.6%
  • Fat 42.4%
  • Carbs 0%

Frequently asked questions

Which has more calories, Crustaceans, Crab or Fish, Mackerel?
Per 100 g: Crustaceans, Crab has 83 kcal, Fish, Mackerel has 139 kcal.
Which has more protein, Crustaceans, Crab or Fish, Mackerel?
Per 100 g: Crustaceans, Crab has 17.9 g of protein, Fish, Mackerel has 19.3 g.

Compare with other foods

Crustaceans, Crab vs Alaska Pollock, Raw Crustaceans, Crab vs Anchovies, Canned In Olive Oil Crustaceans, Crab vs Cod, Pacific Or Alaskan Crustaceans, Crab vs Crustaceans, Crab Pick a pair manually →

Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.