Is Oyster keto?
Oyster is keto only in small portions: it has ~6 g of net carbs per 6 medium oysters, against the keto diet's 5 g-per-serving limit.
Net carbs = total − fiber
6 g
per 6 medium oysters
These are the carbs that count on keto: total carbs minus fiber.
Six medium oysters contain 6.8g of net carbs, which is a moderate amount for a ketogenic diet.
Nutrition facts for oyster
How many carbs are in oyster?
Oyster has ~6 g of carbs and ~6 g of net carbs per 6 medium oysters (total carbs minus 0 g of fiber).
Why oyster is keto only in small portions?
On keto the goal is to stay under ~5 g of net carbs per serving; oyster has 6 g per 6 medium oysters (6 g total − 0 g of fiber).
How much oyster can I eat on keto?
To stay under 5 g of net carbs, the limit is ~62 g of oyster.
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See all: Keto seafood
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.
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