Crab vs Mushrooms

Side-by-side macro comparison. Crab vs Mushrooms per their standard serving sizes.

Crab

per 100g cooked

87 cal
18g Protein
0g Carbs
1.1g Fat
Full Crab macros →
vs

Mushrooms

per 1 cup sliced (70g)

15 cal
2.2g Protein
2.3g Carbs
0.2g Fat
Full Mushrooms macros →

Macro Comparison Table

Macro Crab Mushrooms Difference
Calories 87 cal 15 cal +480% Crab
Protein 18g 2.2g +718% Crab
Carbs 0g 2.3g -100% Crab
Fat 1.1g 0.2g +450% 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. Mushrooms delivers 15 calories with 2.2g protein, 2.3g carbs, and 0.2g fat. The most meaningful difference: Mushrooms saves 72 calories per serving — meaningful over a week of meals. For protein density per calorie, Crab wins at 83% of calories from protein.

When to Pick Each

For Cutting / Weight Loss

When cutting on a tight calorie budget, Mushrooms gives you 72 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), Crab delivers more grams of protein per calorie consumed.

For Bulking / Muscle Gain

For muscle gain, you want calories AND protein. Crab brings 87 calories — useful when you're chasing a surplus and struggling to eat enough. Crab delivers 18g 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 Mushrooms are keto-friendly with under 10g carbs per serving.

Frequently Asked

Which has more protein, Crab or Mushrooms?

Crab has more protein: 18g vs 2.2g per serving. That's a difference of 15.8g.

Which has fewer calories, Crab or Mushrooms?

Mushrooms has 15 calories per serving vs 87 calories in Crab — a difference of 72 calories.

Is Crab or Mushrooms better for keto?

Crab is the better keto choice at 0g carbs per serving vs 2.3g carbs in Mushrooms.

Is Crab or Mushrooms better for weight loss?

For weight loss, Mushrooms gives you more calorie flexibility (72 cal less per serving). For preserving muscle during a deficit, Crab delivers more protein per calorie. Most people on cuts benefit from Crab.

Which Is Better for Your Goal?

🔥 Weight Loss

Crab

Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.

💪 Muscle Gain

Crab

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

The "right" food depends on your individual macro targets. Calculate yours in 60 seconds:

→ Calculate My Macros (Free)

Related Comparisons

Other ways Crab and Mushrooms stack up:

Full Crab guideFull Mushrooms guideAll comparisons