Sourdough bread is not keto: it has ~22 g of net carbs per 1 slice, against the keto diet's 5 g-per-serving limit.
Net carbs
22 g
per 1 slice
These are the carbs that count on keto: total carbs minus fiber.
One slice has about 22.5 g of net carbs, well over the keto limit and with a high glycemic index.
Nutrition facts for sourdough bread
0.6 g
Fat
4 g
Protein
1.5 g
Fiber
Why sourdough bread is not keto?
On keto the goal is to stay under ~5 g of net carbs per serving; sourdough bread has 22 g per 1 slice (24 g total − 1 g of fiber).
How much sourdough bread can I eat on keto?
To stay under 5 g of net carbs, the limit is ~11 g of sourdough bread. A better keto alternative is leche de almendras.
Best keto alternative
Related
✓Yes
Keto bread
2 g net
/ 1 slice
✕No
Crackers
13 g net
/ 1 serving (6 crackers)
✕No
Toast
23 g net
/ 2 toasted slices
✕No
Pound cake
31 g net
/ 1 medium slice
✕No
Cheesecake
31 g net
/ 1 slice (1/12 of the cake)
✓Yes
Keto tortillas
3 g net
/ 1 medium tortilla
See all: Panadería 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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