Banana is not keto: it has ~23 g of net carbs per 1 medium banana, against the keto diet's 5 g-per-serving limit.
Net carbs
23 g
per 1 medium banana
These are the carbs that count on keto: total carbs minus fiber.
It has about 23.9 g of net carbs per banana and a high glycemic index, which makes it unsuitable for keto.
Nutrition facts for banana
0.4 g
Fat
1.3 g
Protein
3.1 g
Fiber
Why banana is not keto?
On keto the goal is to stay under ~5 g of net carbs per serving; banana has 23 g per 1 medium banana (27 g total − 3 g of fiber).
How much banana can I eat on keto?
To stay under 5 g of net carbs, the limit is ~25 g of banana.
Related
✕No
Mango
46 g net
/ 1 medium fruit
✕No
Grapes
25 g net
/ 1 cup (stems removed)
~In moderation
Pineapple
9 g net
/ 1 medium slice
✕No
Blueberry
17 g net
/ 1 cup
~In moderation
Melon
11 g net
/ 1 cup, cubed
✕No
Apple
20 g net
/ 1 medium apple
See all: Frutas keto
Source: nutritional estimate (USDA-style reference) · Confidence: high
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.
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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