Is fast food keto?
fast food is not keto: it has ~57 g of net carbs per 1 cheeseburger, against the keto diet's 5 g-per-serving limit.
Net carbs = total − fiber
57 g
per 1 cheeseburger
These are the carbs that count on keto: total carbs minus fiber.
With almost 58g of net carbs per serving, fast food burgers with traditional buns are extremely high in carbohydrates.
Nutrition facts for fast food
How many carbs are in fast food?
fast food has ~58 g of carbs and ~57 g of net carbs per 1 cheeseburger (total carbs minus 0 g of fiber).
Why fast food is not keto?
On keto the goal is to stay under ~5 g of net carbs per serving; fast food has 57 g per 1 cheeseburger (58 g total − 0 g of fiber).
How much fast food can I eat on keto?
To stay under 5 g of net carbs, the limit is ~22 g of fast food. A better keto alternative is lettuce-wrapped burger.
Best keto alternative
Related
No
No
No
Yes
In moderation
No
See all: Keto fast food
Reviewed by the Ketorai team · Last updated: September 5, 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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