NutriBases

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 77 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 77 kcal
Protein 17.9 g 16 g
Total Fat 0.7 g 1 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 58 mg
Potassium 259 mg 302 mg
Calcium 91 mg 27 mg
Iron 0.5 mg 0.8 mg
Magnesium 36 mg 27 mg
Vitamin C 3.3 mg 1.2 mg
Vitamin A 1 mcg 16 mcg
Vitamin D 0 mcg 0 mcg
Cholesterol 97 mg 114 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 88.2%
  • Fat 11.8%
  • 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 77 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 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.