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buttermilk
In moderation
yes, in small amounts

buttermilk

Dairy

Also: suero de leche

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Is buttermilk keto?

buttermilk is keto only in small portions: it has ~11 g of net carbs per 1 glass, against the keto diet's 5 g-per-serving limit.

Net carbs = total − fiber

11 g

per 1 glass

These are the carbs that count on keto: total carbs minus fiber.

A standard 1-glass serving contains 11.5 g of net carbs, which fits within the daily limit but should be consumed in moderation.

Nutrition facts for buttermilk

2.6 g
Fat
8.3 g
Protein
0 g
Fiber

How many carbs are in buttermilk?

buttermilk has ~11 g of carbs and ~11 g of net carbs per 1 glass (total carbs minus 0 g of fiber).

Why buttermilk is keto only in small portions?

On keto the goal is to stay under ~5 g of net carbs per serving; buttermilk has 11 g per 1 glass (11 g total − 0 g of fiber).

How much buttermilk can I eat on keto?

To stay under 5 g of net carbs, the limit is ~104 g of buttermilk.

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Related

See all: Keto cheese

Source: nutritional estimate (USDA-style reference) · Confidence: high
Reviewed by the Ketorai team · Last updated: August 22, 2026 · How we assign the verdict
For information only. This does not replace advice from a health professional.
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