Spinach vs Tuna
Side-by-side macro comparison. Spinach vs Tuna per their standard serving sizes.
Macro Comparison Table
| Macro | Spinach | Tuna | Difference |
|---|---|---|---|
| Calories | 7 cal | 116 cal | -94% Spinach |
| Protein | 0.9g | 26g | -97% Spinach |
| Carbs | 1.1g | 0g | 0% Spinach |
| Fat | 0.1g | 0.8g | -87% Spinach |
Differences shown relative to Spinach. Positive = Spinach has more.
Quick Take
Spinach delivers 7 calories per serving with 0.9g protein, 1.1g carbs, and 0.1g fat. Tuna delivers 116 calories with 26g protein, 0g carbs, and 0.8g fat. The most meaningful difference: Spinach saves 109 calories per serving — meaningful over a week of meals. For protein density per calorie, Tuna wins at 90% of calories from protein.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Spinach gives you 109 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), Tuna delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Tuna brings 116 calories — useful when you're chasing a surplus and struggling to eat enough. Tuna delivers 26g 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 Spinach and Tuna are keto-friendly with under 10g carbs per serving.
Frequently Asked
Which has more protein, Spinach or Tuna?
Tuna has more protein: 26g vs 0.9g per serving. That's a difference of 25.1g.
Which has fewer calories, Spinach or Tuna?
Spinach has 7 calories per serving vs 116 calories in Tuna — a difference of 109 calories.
Is Spinach or Tuna better for keto?
Tuna is the better keto choice at 0g carbs per serving vs 1.1g carbs in Spinach.
Is Spinach or Tuna better for weight loss?
For weight loss, Spinach gives you more calorie flexibility (109 cal less per serving). For preserving muscle during a deficit, Tuna delivers more protein per calorie. Most people on cuts benefit from Tuna.
Which Is Better for Your Goal?
🔥 Weight Loss
Tuna
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Tuna
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Tuna
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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