Polenta is not keto: it has ~30 g of net carbs per 1 cup cooked, against the keto diet's 5 g-per-serving limit.
Net carbs
30 g
per 1 cup cooked
These are the carbs that count on keto: total carbs minus fiber.
One cup provides about 30 g of net carbs and has a high glycemic index, well above the keto limit.
Nutrition facts for polenta
1 g
Fat
3.5 g
Protein
2 g
Fiber
Why polenta is not keto?
On keto the goal is to stay under ~5 g of net carbs per serving; polenta has 30 g per 1 cup cooked (32 g total − 2 g of fiber).
How much polenta can I eat on keto?
To stay under 5 g of net carbs, the limit is ~40 g of polenta. A better keto alternative is coliflor.
Best keto alternative
Related
✕No
Corn
24 g net
/ 1 cup (≈150 g)
✕No
Oatmeal
23 g net
/ 1 cup cooked
✕No
Rice
43 g net
/ 1 cup
✕No
Brown rice
42 g net
/ 1 cup cooked
✕No
Wheat
28 g net
/ 1/4 cup, raw
✕No
Quinoa
34 g net
/ 1 cup cooked
See all: Cereales 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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