Crab vs Shrimp
Side-by-side macro comparison. Crab vs Shrimp per their standard serving sizes.
Macro Comparison Table
| Macro | Crab | Shrimp | Difference |
|---|---|---|---|
| Calories | 87 cal | 99 cal | -12% Crab |
| Protein | 18g | 24g | -25% Crab |
| Carbs | 0g | 0.2g | -100% Crab |
| Fat | 1.1g | 0.3g | +267% Crab |
Differences shown relative to Crab. Positive = Crab has more.
Quick Take
Crab delivers 87 calories per serving with 18g protein, 0g carbs, and 1.1g fat. Shrimp delivers 99 calories with 24g protein, 0.2g carbs, and 0.3g fat. The most meaningful difference: they're within 12 calories per serving, so calorie load is essentially equivalent. For protein density per calorie, Shrimp wins at 97% of calories from protein.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Crab gives you 12 more calories of headroom per serving — that's room for an extra snack, more vegetables, or a higher-protein second portion. If protein density matters more (which it does for preserving muscle on a deficit), Shrimp delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Shrimp brings 99 calories — useful when you're chasing a surplus and struggling to eat enough. Shrimp delivers 24g of protein per serving, which directly feeds muscle protein synthesis. The best pick depends on whether you need more total calories or more usable protein.
For Keto / Low-Carb
Both Crab and Shrimp are keto-friendly with under 10g carbs per serving.
Frequently Asked
Which has more protein, Crab or Shrimp?
Shrimp has more protein: 24g vs 18g per serving. That's a difference of 6g.
Which has fewer calories, Crab or Shrimp?
Crab has 87 calories per serving vs 99 calories in Shrimp — a difference of 12 calories.
Is Crab or Shrimp better for keto?
Crab is the better keto choice at 0g carbs per serving vs 0.2g carbs in Shrimp.
Is Crab or Shrimp better for weight loss?
For weight loss, Crab gives you more calorie flexibility (12 cal less per serving). For preserving muscle during a deficit, Shrimp delivers more protein per calorie. Most people on cuts benefit from Shrimp.
Which Is Better for Your Goal?
🔥 Weight Loss
Shrimp
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Shrimp
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Crab
Lower carbohydrate content fits keto and low-carb macros without burning your carb budget.
Both fit most balanced diets. These verdicts reflect macro-only comparisons — taste, satiety, cost, and personal preference also matter.
Find Your Personal Macros
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