Mustard is keto: it has ~0 g of net carbs per 1 tablespoon, within the keto diet's 5 g-per-serving limit.
Net carbs
0 g
per 1 tablespoon
These are the carbs that count on keto: total carbs minus fiber.
With just 0.4 g of net carbs per tablespoon, it's an ideal seasoning for keto.
Nutrition facts for mustard
0.6 g
Fat
0.7 g
Protein
0.5 g
Fiber
Why mustard is keto?
On keto the goal is to stay under ~5 g of net carbs per serving; mustard has 0 g per 1 tablespoon (0 g total − 0 g of fiber).
How much mustard can I eat on keto?
To stay under 5 g of net carbs, the limit is ~188 g of mustard.
Related
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.
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