Grapefruit — Calories and Macros
Pink grapefruit half. Interacts with many medications — check with your doctor.
per 1/2 medium (~123g)
3% of a 2,000 cal day
Protein
0.9g
Carbs
13g
Fat
0.2g
Fiber
2g
Sugar
8.5g
Per 100 grams
Standardized to 100g so you can compare across foods.
Calories
42
Protein
0.7g
Carbs
10.6g
Fat
0.2g
Fiber
1.6g
Sugar
6.9g
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Common questions
How many calories are in grapefruit?
1/2 medium (~123g) of grapefruit has 52 calories, with 0.9g protein, 13g carbs, and 0.2g fat.
How much protein is in grapefruit?
Grapefruit has 0.9g of protein per 1/2 medium (~123g). That is about 2g per 100 calories, not a significant source of protein.
Is grapefruit good for weight loss?
Any food can fit a weight-loss diet, because your total daily calories decide the result, not one food. Grapefruit is relatively light for its portion, so it fits comfortably within most calorie targets.
Is grapefruit healthy?
Healthy depends on the rest of your day, not one food. In a balanced diet at your calorie target, grapefruit is fine; the portion and how often you eat it matter more than the food itself.
Nutrition values approximated from USDA FoodData Central. Estimates for tracking, not medical reference. Reviewed against USDA FoodData Central.