NutriBase

Crustaceans, Crab vs Crustaceans, Crayfish: 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 Crustaceans, Crayfish 82 kcal · 100 g

Key differences

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

Nutrient comparison (per 100 g)

Nutrient Crustaceans, Crab Crustaceans, Crayfish
Calories 83 kcal 82 kcal
Protein 17.9 g 16.8 g
Total Fat 0.7 g 1.2 g
Saturated Fat 0.2 g 0.2 g
Carbohydrate 0 g 0 g
Dietary Fiber 0 g 0 g
Total Sugars 0 g 0 g
Sodium 563 mg 94 mg
Potassium 259 mg 296 mg
Calcium 91 mg 60 mg
Iron 0.5 mg 0.8 mg
Magnesium 36 mg 33 mg
Vitamin C 3.3 mg 0.9 mg
Vitamin A 1 mcg 15 mcg
Vitamin D 0 mcg 0 mcg
Cholesterol 97 mg 133 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%

Crustaceans, Crayfish

  • Protein 86.1%
  • Fat 13.9%
  • Carbs 0%

Frequently asked questions

Which has more calories, Crustaceans, Crab or Crustaceans, Crayfish?
Per 100 g: Crustaceans, Crab has 83 kcal, Crustaceans, Crayfish has 82 kcal.
Which has more protein, Crustaceans, Crab or Crustaceans, Crayfish?
Per 100 g: Crustaceans, Crab has 17.9 g of protein, Crustaceans, Crayfish has 16.8 g.

Compare with other foods

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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.