Mayonnaise vs Vegetable Oil
Side-by-side macro comparison. Mayonnaise vs Vegetable Oil per their standard serving sizes.
Macro Comparison Table
| Macro | Mayonnaise | Vegetable Oil | Difference |
|---|---|---|---|
| Calories | 94 cal | 120 cal | -22% Mayonnaise |
| Protein | 0.1g | 0g | 0% Mayonnaise |
| Carbs | 0.1g | 0g | 0% Mayonnaise |
| Fat | 10g | 14g | -29% 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. Vegetable Oil delivers 120 calories with 0g protein, 0g carbs, and 14g fat. The most meaningful difference: they're within 26 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, Mayonnaise gives you 26 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), Vegetable Oil delivers more grams of protein per calorie consumed.
For Bulking / Muscle Gain
For muscle gain, you want calories AND protein. Vegetable Oil brings 120 calories — useful when you're chasing a surplus and struggling to eat enough. Mayonnaise delivers 0.1g 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 Vegetable Oil are keto-friendly with under 10g carbs per serving.
Frequently Asked
Which has more protein, Mayonnaise or Vegetable Oil?
Mayonnaise has more protein: 0.1g vs 0g per serving. That's a difference of 0.1g.
Which has fewer calories, Mayonnaise or Vegetable Oil?
Mayonnaise has 94 calories per serving vs 120 calories in Vegetable Oil — a difference of 26 calories.
Is Mayonnaise or Vegetable Oil better for keto?
Vegetable Oil is the better keto choice at 0g carbs per serving vs 0.1g carbs in Mayonnaise.
Is Mayonnaise or Vegetable Oil better for weight loss?
For weight loss, Mayonnaise gives you more calorie flexibility (26 cal less per serving). For preserving muscle during a deficit, Vegetable Oil delivers more protein per calorie. Most people on cuts benefit from Vegetable Oil.
Which Is Better for Your Goal?
🔥 Weight Loss
Mayonnaise
Higher protein-to-calorie density + lower absolute fat = more satiety per calorie.
💪 Muscle Gain
Mayonnaise
Higher absolute protein per serving better supports muscle protein synthesis.
🥑 Low-Carb / Keto
Vegetable Oil
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 Mayonnaise and Vegetable Oil stack up:
Full Mayonnaise guide • Full Vegetable Oil guide • All comparisons