Crustaceans, Crab vs Mollusks, Clam: Nutrition Comparison
Compare calories, protein, fat, carbs, vitamins and minerals per 100 g. Values shaded green are generally the more favorable ones.
Key differences
- Crustaceans, Crab has more calories; Mollusks, Clam is lower in calories.
- Crustaceans, Crab has more protein per 100 g.
- Crustaceans, Crab is notably higher in iron.
- Crustaceans, Crab is notably higher in calcium.
- Crustaceans, Crab is notably higher in potassium.
Nutrient comparison (per 100 g)
| Nutrient | Crustaceans, Crab | Mollusks, Clam |
|---|---|---|
| Calories | 83 kcal | 2 kcal |
| Protein | 17.9 g | 0.4 g |
| Total Fat | 0.7 g | 0 g |
| Saturated Fat | 0.2 g | 0 g |
| Carbohydrate | 0 g | 0.1 g |
| Dietary Fiber | 0 g | 0 g |
| Total Sugars | 0 g | 0 g |
| Sodium | 563 mg | 215 mg |
| Potassium | 259 mg | 149 mg |
| Calcium | 91 mg | 13 mg |
| Iron | 0.5 mg | 0.3 mg |
| Magnesium | 36 mg | 11 mg |
| Vitamin C | 3.3 mg | 1 mg |
| Vitamin A | 1 mcg | 9 mcg |
| Vitamin D | 0 mcg | 0 mcg |
| Cholesterol | 97 mg | 3 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%
Mollusks, Clam
- Protein 73.4%
- Fat 8.3%
- Carbs 18.3%
Frequently asked questions
- Which has more calories, Crustaceans, Crab or Mollusks, Clam?
- Per 100 g: Crustaceans, Crab has 83 kcal, Mollusks, Clam has 2 kcal.
- Which has more protein, Crustaceans, Crab or Mollusks, Clam?
- Per 100 g: Crustaceans, Crab has 17.9 g of protein, Mollusks, Clam has 0.4 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.