NutriBase

Crustaceans, Crab vs Fish, Salmon: Nutrition Comparison

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

Key differences

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

Nutrient comparison (per 100 g)

Nutrient Crustaceans, Crab Fish, Salmon
Calories 83 kcal 160 kcal
Protein 17.9 g 21.3 g
Total Fat 0.7 g 7.7 g
Saturated Fat 0.2 g 1.8 g
Carbohydrate 0 g 0 g
Dietary Fiber 0 g 0 g
Total Sugars 0 g
Sodium 563 mg 47 mg
Potassium 259 mg 450 mg
Calcium 91 mg 12 mg
Iron 0.5 mg 0.3 mg
Magnesium 36 mg 31 mg
Vitamin C 3.3 mg 1.1 mg
Vitamin A 1 mcg 56 mcg
Vitamin D 0 mcg
Cholesterol 97 mg 51 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, Salmon

  • Protein 55.2%
  • Fat 44.8%
  • Carbs 0%

Frequently asked questions

Which has more calories, Crustaceans, Crab or Fish, Salmon?
Per 100 g: Crustaceans, Crab has 83 kcal, Fish, Salmon has 160 kcal.
Which has more protein, Crustaceans, Crab or Fish, Salmon?
Per 100 g: Crustaceans, Crab has 17.9 g of protein, Fish, Salmon has 21.3 g.

Compare with other foods

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.