Feta Cheese vs Mayonnaise
Side-by-side macro comparison. Feta Cheese vs Mayonnaise per their standard serving sizes.
Macro Comparison Table
| Macro | Feta Cheese | Mayonnaise | Difference |
|---|---|---|---|
| Calories | 75 cal | 94 cal | -20% Feta |
| Protein | 4g | 0.1g | +3900% Feta |
| Carbs | 1.2g | 0.1g | +1100% Feta |
| Fat | 6g | 10g | -40% Feta |
Differences shown relative to Feta Cheese. Positive = Feta Cheese has more.
Quick Take
Feta Cheese delivers 75 calories per serving with 4g protein, 1.2g carbs, and 6g fat. Mayonnaise delivers 94 calories with 0.1g protein, 0.1g carbs, and 10g fat. The most meaningful difference: they're within 19 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, Feta Cheese gives you 19 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), Feta Cheese 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. Feta Cheese 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
Both Feta Cheese and Mayonnaise are keto-friendly with under 10g carbs per serving.
Frequently Asked
Which has more protein, Feta Cheese or Mayonnaise?
Feta Cheese has more protein: 4g vs 0.1g per serving. That's a difference of 3.9g.
Which has fewer calories, Feta Cheese or Mayonnaise?
Feta Cheese has 75 calories per serving vs 94 calories in Mayonnaise — a difference of 19 calories.
Is Feta Cheese or Mayonnaise better for keto?
Mayonnaise is the better keto choice at 0.1g carbs per serving vs 1.2g carbs in Feta Cheese.
Is Feta Cheese or Mayonnaise better for weight loss?
For weight loss, Feta Cheese gives you more calorie flexibility (19 cal less per serving). For preserving muscle during a deficit, Feta Cheese delivers more protein per calorie. Most people on cuts benefit from Feta Cheese.
Which Is Better for Your Goal?
🔥 Weight Loss
Feta Cheese
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Feta Cheese
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
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Other ways Feta Cheese and Mayonnaise stack up:
Full Feta Cheese guide • Full Mayonnaise guide • All comparisons