Is grape juice keto?
grape juice is not keto: it has ~37 g of net carbs per 1 glass, against the keto diet's 5 g-per-serving limit.
Net carbs = total − fiber
37 g
per 1 glass
These are the carbs that count on keto: total carbs minus fiber.
With almost 38g of net carbs per glass, grape juice has a high glycemic index and contains concentrated fruit sugars that will quickly kick you out of ketosis.
Nutrition facts for grape juice
How many carbs are in grape juice?
grape juice has ~37 g of carbs and ~37 g of net carbs per 1 glass (total carbs minus 0 g of fiber).
Why grape juice is not keto?
On keto the goal is to stay under ~5 g of net carbs per serving; grape juice has 37 g per 1 glass (37 g total − 0 g of fiber).
How much grape juice can I eat on keto?
To stay under 5 g of net carbs, the limit is ~32 g of grape juice.
Related
No
In moderation
In moderation
No
Yes
No
See all: Keto fruits
Reviewed by the Ketorai team · Last updated: September 4, 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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