Is Grapefruit juice keto?
Grapefruit juice is not keto: it has ~24 g of net carbs per 1 glass, against the keto diet's 5 g-per-serving limit.
Net carbs = total − fiber
24 g
per 1 glass
These are the carbs that count on keto: total carbs minus fiber.
Grapefruit juice is not keto-friendly because one glass contains 24.5g of net carbs, which is too high for a ketogenic diet, and it is also high in natural sugars.
Nutrition facts for grapefruit juice
How many carbs are in grapefruit juice?
Grapefruit juice has ~24 g of carbs and ~24 g of net carbs per 1 glass (total carbs minus 0 g of fiber).
Why grapefruit juice is not keto?
On keto the goal is to stay under ~5 g of net carbs per serving; grapefruit juice has 24 g per 1 glass (24 g total − 0 g of fiber).
How much grapefruit juice can I eat on keto?
To stay under 5 g of net carbs, the limit is ~49 g of grapefruit juice.
Related
No
Yes
No
Yes
Yes
No
See all: Keto drinks
Reviewed by the Ketorai team · Last updated: July 5, 2026 · How we assign the verdict
For information only. This does not replace advice from a health professional.
Something off? Let us know.
Search another food