Grapefruit is keto only in small portions: it has ~11 g of net carbs per 1/2 medium fruit, against the keto diet's 5 g-per-serving limit.
Net carbs
11 g
per 1/2 medium fruit
These are the carbs that count on keto: total carbs minus fiber.
Half a grapefruit has about 11 g of net carbs; it's easy to eat more than one serving, and it contains natural sugars.
Nutrition facts for grapefruit
Why grapefruit is keto only in small portions?
On keto the goal is to stay under ~5 g of net carbs per serving; grapefruit has 11 g per 1/2 medium fruit (13 g total − 2 g of fiber).
How much grapefruit can I eat on keto?
To stay under 5 g of net carbs, the limit is ~56 g of grapefruit. A better keto alternative is fresas.
Best keto alternative
Related
✕No
✕No
✕No
~In moderation
✕No
✕No
See all: Frutas keto
Reviewed by the Ketorai team · Last updated: July 1, 2026 · How we assign the verdict
For information only. This does not replace advice from a health professional.
Something off? Let us know.
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