Grapefruit
0.8 g protein per 100 g, 1 g per 1/2 fruit.
Updated 2026-10-08 - data v2026-10-08.2
Estimated nutrition for Grapefruit, per 100 g and per 1/2 fruit (123 g).
Nutrition
| kcal | P | C | F | |
|---|---|---|---|---|
| Per 100 g | 42 | 0.8 | 11 | 0.1 |
| Per serving (1/2 fruit, 123 g) | 52 | 1 | 13.5 | 0.1 |
Protein per 100 kcal: 1.9 g est.
Cost
Est. cost per serving $0.40–$1.00 est.
Est. cost midpoint $0.70 est.
Est. $ per 10 g protein: $7.00 est.
Diet and scores
Low-carb, Paleo, Mediterranean, Vegetarian, Vegan, Pescatarian, Gluten-Free, Dairy-Free
Efficiency 9 / Taste 6 / Overall 7.5
Longevity: Vitamin C, lycopene (ruby)
Recipes using this food
None yet.
Nutrition values are estimates until a USDA record is attached. Not medical advice.
USDA FDC ID: not yet verified (est.)
Cite as: Macro Friendly Meals, "Grapefruit nutrition", https://macrofriendlymeals.com/foods/grapefruit, data v2026-10-08.2.