Is Fennel keto?
Fennel is keto: it has ~4 g of net carbs per 1 cup sliced, within the keto diet's 5 g-per-serving limit.
Net carbs = total − fiber
4 g
per 1 cup sliced
These are the carbs that count on keto: total carbs minus fiber.
Fennel is keto-friendly with only 4.1 grams of net carbs per serving.
Nutrition facts for fennel
How many carbs are in fennel?
Fennel has ~6 g of carbs and ~4 g of net carbs per 1 cup sliced (total carbs minus 2 g of fiber).
Why fennel is keto?
On keto the goal is to stay under ~5 g of net carbs per serving; fennel has 4 g per 1 cup sliced (6 g total − 2 g of fiber).
How much fennel can I eat on keto?
To stay under 5 g of net carbs, the limit is ~106 g of fennel.
Related
In moderation
In moderation
Yes
Yes
No
No
See all: Keto vegetables
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.
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