Banana vs Sourdough Bread
Side-by-side macro comparison. Banana vs Sourdough Bread per their standard serving sizes.
Sourdough Bread
per 1 slice (36g)
Macro Comparison Table
| Macro | Banana | Sourdough Bread | Difference |
|---|---|---|---|
| Calories | 105 cal | 93 cal | +13% Banana |
| Protein | 1.3g | 4g | -67% Banana |
| Carbs | 27g | 18g | +50% Banana |
| Fat | 0.4g | 0.6g | -33% Banana |
Differences shown relative to Banana. Positive = Banana has more.
Quick Take
Banana delivers 105 calories per serving with 1.3g protein, 27g carbs, and 0.4g fat. Sourdough Bread delivers 93 calories with 4g protein, 18g carbs, and 0.6g fat. The most meaningful difference: they're within 12 calories per serving, so calorie load is essentially equivalent. Both deliver similar protein density.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Sourdough Bread gives you 12 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), Sourdough Bread delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Banana brings 105 calories — useful when you're chasing a surplus and struggling to eat enough. Sourdough Bread delivers 4g 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
Sourdough Bread fits cleanly into keto with only 18g carbs. Banana at 27g carbs uses significantly more of your daily 20-30g carb budget.
Frequently Asked
Which has more protein, Banana or Sourdough Bread?
Sourdough Bread has more protein: 4g vs 1.3g per serving. That's a difference of 2.7g.
Which has fewer calories, Banana or Sourdough Bread?
Sourdough Bread has 93 calories per serving vs 105 calories in Banana — a difference of 12 calories.
Is Banana or Sourdough Bread better for keto?
Sourdough Bread is the better keto choice at 18g carbs per serving vs 27g carbs in Banana.
Is Banana or Sourdough Bread better for weight loss?
For weight loss, Sourdough Bread gives you more calorie flexibility (12 cal less per serving). For preserving muscle during a deficit, Sourdough Bread delivers more protein per calorie. Most people on cuts benefit from Sourdough Bread.
Which Is Better for Your Goal?
🔥 Weight Loss
Sourdough Bread
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Sourdough Bread
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Sourdough Bread
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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Other ways Banana and Sourdough Bread stack up:
Full Banana guide • Full Sourdough Bread guide • All comparisons