Crab vs Spinach

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

Crab

per 100g cooked

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

Spinach

per 1 cup raw (30g)

7 cal
0.9g Protein
1.1g Carbs
0.1g Fat
Full Spinach macros →

Macro Comparison Table

Macro Crab Spinach Difference
Calories 87 cal 7 cal +1143% Crab
Protein 18g 0.9g +1900% Crab
Carbs 0g 1.1g -100% Crab
Fat 1.1g 0.1g +1000% 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. Spinach delivers 7 calories with 0.9g protein, 1.1g carbs, and 0.1g fat. The most meaningful difference: Spinach saves 80 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, Spinach gives you 80 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 Spinach are keto-friendly with under 10g carbs per serving.

Frequently Asked

Which has more protein, Crab or Spinach?

Crab has more protein: 18g vs 0.9g per serving. That's a difference of 17.1g.

Which has fewer calories, Crab or Spinach?

Spinach has 7 calories per serving vs 87 calories in Crab — a difference of 80 calories.

Is Crab or Spinach better for keto?

Crab is the better keto choice at 0g carbs per serving vs 1.1g carbs in Spinach.

Is Crab or Spinach better for weight loss?

For weight loss, Spinach gives you more calorie flexibility (80 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 Spinach stack up:

Full Crab guideFull Spinach guideAll comparisons