NutriBase

Crustaceans, Crab vs Fish, Smelt: 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, Smelt has more calories; Crustaceans, Crab is lower in calories.
  • Crustaceans, Crab has more protein per 100 g.
  • Fish, Smelt is notably higher in iron.
  • Crustaceans, Crab is notably higher in calcium.

Nutrient comparison (per 100 g)

Nutrient Crustaceans, Crab Fish, Smelt
Calories 83 kcal 97 kcal
Protein 17.9 g 17.6 g
Total Fat 0.7 g 2.4 g
Saturated Fat 0.2 g 0.5 g
Carbohydrate 0 g 0 g
Dietary Fiber 0 g 0 g
Total Sugars 0 g 0 g
Sodium 563 mg 60 mg
Potassium 259 mg 290 mg
Calcium 91 mg 60 mg
Iron 0.5 mg 0.9 mg
Magnesium 36 mg 30 mg
Vitamin C 3.3 mg 0 mg
Vitamin A 1 mcg 15 mcg
Vitamin D 0 mcg 0.8 mcg
Cholesterol 97 mg 70 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, Smelt

  • Protein 76.4%
  • Fat 23.6%
  • Carbs 0%

Frequently asked questions

Which has more calories, Crustaceans, Crab or Fish, Smelt?
Per 100 g: Crustaceans, Crab has 83 kcal, Fish, Smelt has 97 kcal.
Which has more protein, Crustaceans, Crab or Fish, Smelt?
Per 100 g: Crustaceans, Crab has 17.9 g of protein, Fish, Smelt has 17.6 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.