Canned Tuna (in water) vs Roast Beef (deli)
Side-by-side macro comparison. Canned Tuna (in water) vs Roast Beef (deli) per their standard serving sizes.
Canned Tuna (in water)
per 1 can (142g drained)
Roast Beef (deli)
per 2 slices (56g)
Macro Comparison Table
| Macro | Canned Tuna (in water) | Roast Beef (deli) | Difference |
|---|---|---|---|
| Calories | 130 cal | 70 cal | +86% Canned |
| Protein | 27g | 12g | +125% Canned |
| Carbs | 0g | 1g | -100% Canned |
| Fat | 1g | 2g | -50% Canned |
Differences shown relative to Canned Tuna (in water). Positive = Canned Tuna (in water) has more.
Quick Take
Canned Tuna (in water) delivers 130 calories per serving with 27g protein, 0g carbs, and 1g fat. Roast Beef (deli) delivers 70 calories with 12g protein, 1g carbs, and 2g fat. The most meaningful difference: Roast Beef (deli) saves 60 calories per serving — meaningful over a week of meals. For protein density per calorie, Canned Tuna (in water) wins at 83% of calories from protein.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Roast Beef (deli) gives you 60 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), Canned Tuna (in water) delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Canned Tuna (in water) brings 130 calories — useful when you're chasing a surplus and struggling to eat enough. Canned Tuna (in water) delivers 27g 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 Canned Tuna (in water) and Roast Beef (deli) are keto-friendly with under 10g carbs per serving.
Frequently Asked
Which has more protein, Canned Tuna (in water) or Roast Beef (deli)?
Canned Tuna (in water) has more protein: 27g vs 12g per serving. That's a difference of 15g.
Which has fewer calories, Canned Tuna (in water) or Roast Beef (deli)?
Roast Beef (deli) has 70 calories per serving vs 130 calories in Canned Tuna (in water) — a difference of 60 calories.
Is Canned Tuna (in water) or Roast Beef (deli) better for keto?
Canned Tuna (in water) is the better keto choice at 0g carbs per serving vs 1g carbs in Roast Beef (deli).
Is Canned Tuna (in water) or Roast Beef (deli) better for weight loss?
For weight loss, Roast Beef (deli) gives you more calorie flexibility (60 cal less per serving). For preserving muscle during a deficit, Canned Tuna (in water) delivers more protein per calorie. Most people on cuts benefit from Canned Tuna (in water).
Which Is Better for Your Goal?
🔥 Weight Loss
Canned Tuna (in water)
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Canned Tuna (in water)
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Canned Tuna (in water)
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 Canned Tuna (in water) and Roast Beef (deli) stack up:
Full Canned Tuna (in water) guide • Full Roast Beef (deli) guide • All comparisons