Mayonnaise vs Sour Cream
Side-by-side macro comparison. Mayonnaise vs Sour Cream per their standard serving sizes.
Macro Comparison Table
| Macro | Mayonnaise | Sour Cream | Difference |
|---|---|---|---|
| Calories | 94 cal | 60 cal | +57% Mayonnaise |
| Protein | 0.1g | 1g | -90% Mayonnaise |
| Carbs | 0.1g | 1g | -90% Mayonnaise |
| Fat | 10g | 6g | +67% Mayonnaise |
Differences shown relative to Mayonnaise. Positive = Mayonnaise has more.
Quick Take
Mayonnaise delivers 94 calories per serving with 0.1g protein, 0.1g carbs, and 10g fat. Sour Cream delivers 60 calories with 1g protein, 1g carbs, and 6g fat. The most meaningful difference: Sour Cream saves 34 calories per serving — meaningful over a week of meals. Both deliver similar protein density.
When to Pick Each
For Cutting / Weight Loss
When cutting on a tight calorie budget, Sour Cream gives you 34 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), Sour Cream delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Mayonnaise brings 94 calories — useful when you're chasing a surplus and struggling to eat enough. Sour Cream delivers 1g 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 Mayonnaise and Sour Cream are keto-friendly with under 10g carbs per serving.
Frequently Asked
Which has more protein, Mayonnaise or Sour Cream?
Sour Cream has more protein: 1g vs 0.1g per serving. That's a difference of 0.9g.
Which has fewer calories, Mayonnaise or Sour Cream?
Sour Cream has 60 calories per serving vs 94 calories in Mayonnaise — a difference of 34 calories.
Is Mayonnaise or Sour Cream better for keto?
Mayonnaise is the better keto choice at 0.1g carbs per serving vs 1g carbs in Sour Cream.
Is Mayonnaise or Sour Cream better for weight loss?
For weight loss, Sour Cream gives you more calorie flexibility (34 cal less per serving). For preserving muscle during a deficit, Sour Cream delivers more protein per calorie. Most people on cuts benefit from Sour Cream.
Which Is Better for Your Goal?
🔥 Weight Loss
Sour Cream
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Sour Cream
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Mayonnaise
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 Mayonnaise and Sour Cream stack up:
Full Mayonnaise guide • Full Sour Cream guide • All comparisons