Chicken Breast vs Roast Beef (deli)

Side-by-side macro comparison. Chicken Breast vs Roast Beef (deli) per their standard serving sizes.

Chicken Breast

per 100g cooked

165 cal
31g Protein
0g Carbs
3.6g Fat
Full Chicken Breast macros →
vs

Roast Beef (deli)

per 2 slices (56g)

70 cal
12g Protein
1g Carbs
2g Fat
Full Roast Beef (deli) macros →

Macro Comparison Table

Macro Chicken Breast Roast Beef (deli) Difference
Calories 165 cal 70 cal +136% Chicken
Protein 31g 12g +158% Chicken
Carbs 0g 1g -100% Chicken
Fat 3.6g 2g +80% Chicken

Differences shown relative to Chicken Breast. Positive = Chicken Breast has more.

Quick Take

Chicken Breast delivers 165 calories per serving with 31g protein, 0g carbs, and 3.6g fat. Roast Beef (deli) delivers 70 calories with 12g protein, 1g carbs, and 2g fat. The most meaningful difference: Roast Beef (deli) saves 95 calories per serving — meaningful over a week of meals. For protein density per calorie, Chicken Breast wins at 75% of calories from protein.

When to Pick Each

For Cutting / Weight Loss

When cutting on a tight calorie budget, Roast Beef (deli) gives you 95 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), Chicken Breast delivers more grams of protein per calorie consumed.

For Bulking / Muscle Gain

For muscle gain, you want calories AND protein. Chicken Breast brings 165 calories — useful when you're chasing a surplus and struggling to eat enough. Chicken Breast delivers 31g 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 Chicken Breast and Roast Beef (deli) are keto-friendly with under 10g carbs per serving.

Frequently Asked

Which has more protein, Chicken Breast or Roast Beef (deli)?

Chicken Breast has more protein: 31g vs 12g per serving. That's a difference of 19g.

Which has fewer calories, Chicken Breast or Roast Beef (deli)?

Roast Beef (deli) has 70 calories per serving vs 165 calories in Chicken Breast — a difference of 95 calories.

Is Chicken Breast or Roast Beef (deli) better for keto?

Chicken Breast is the better keto choice at 0g carbs per serving vs 1g carbs in Roast Beef (deli).

Is Chicken Breast or Roast Beef (deli) better for weight loss?

For weight loss, Roast Beef (deli) gives you more calorie flexibility (95 cal less per serving). For preserving muscle during a deficit, Chicken Breast delivers more protein per calorie. Most people on cuts benefit from Chicken Breast.

Which Is Better for Your Goal?

🔥 Weight Loss

Roast Beef (deli)

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

💪 Muscle Gain

Chicken Breast

Higher absolute protein per serving better supports muscle protein synthesis.

🥑 Low-Carb / Keto

Chicken Breast

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:

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Related Comparisons

Other ways Chicken Breast and Roast Beef (deli) stack up:

Full Chicken Breast guideFull Roast Beef (deli) guideAll comparisons