Which has more calories, Butter, Light or Mayonnaise, Reduced Fat?

Per 100 g: Butter, Light has 499 kcal, Mayonnaise, Reduced Fat has 361 kcal.

Which has more protein, Butter, Light or Mayonnaise, Reduced Fat?

Per 100 g: Butter, Light has 3.3 g of protein, Mayonnaise, Reduced Fat has 0.4 g.

Butter, Light vs Mayonnaise, Reduced Fat: Nutrition Comparison

Compare calories, protein, fat, carbs, vitamins and minerals per 100 g. Values shaded green are generally the more favorable ones.

Oils & Fats Butter, Light 499 kcal · 100 g VS Oils & Fats Mayonnaise, Reduced Fat 361 kcal · 100 g

Key differences

Butter, Light has more calories; Mayonnaise, Reduced Fat is lower in calories.
Butter, Light has more protein per 100 g.
Butter, Light is notably higher in potassium.

Nutrient comparison (per 100 g)

Nutrient	Butter, Light	Mayonnaise, Reduced Fat
Calories	499 kcal	361 kcal
Protein	3.3 g	0.4 g
Total Fat	55.1 g	40 g
Saturated Fat	34.3 g	5.4 g
Carbohydrate	0 g	0 g
Dietary Fiber	0 g	0 g
Total Sugars	0 g	0 g
Sodium	450 mg	800 mg
Potassium	71 mg	31 mg
Calcium	48 mg	0 mg
Iron	1.1 mg	0 mg
Magnesium	5 mg	2 mg
Vitamin C	0 mg	0 mg
Vitamin A	465 mcg	8 mcg
Vitamin D	0 mcg	0 mcg
Cholesterol	106 mg	33 mg

Green highlighting marks the more favorable value where it applies (for example, more protein or less saturated fat). Neutral nutrients are not highlighted.

Data source: USDA FoodData Central. Values are per 100 g of edible portion and are reference figures — they vary by variety, preparation and brand. Last updated: 2026-04-30.

Butter, Light

Protein 2.6%
Fat 97.4%
Carbs 0%

Mayonnaise, Reduced Fat

Protein 0.4%
Fat 99.6%
Carbs 0%

Frequently asked questions

Which has more calories, Butter, Light or Mayonnaise, Reduced Fat?: Per 100 g: Butter, Light has 499 kcal, Mayonnaise, Reduced Fat has 361 kcal.
Which has more protein, Butter, Light or Mayonnaise, Reduced Fat?: Per 100 g: Butter, Light has 3.3 g of protein, Mayonnaise, Reduced Fat has 0.4 g.

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Note. This information is provided for general reference only and is not medical advice or a diet prescription. If you have a medical condition or special dietary needs, consult a physician or a registered dietitian.