Is It Keto? Instant Food Checker
Type a food. Get the verdict, the net carbs in a normal portion, and the share of a strict keto day.
How do I know if a food is keto? Check its net carbs (total carbs minus fibre) in the portion you actually eat. Under about 2 g per serving fits any keto day easily; over about 6 g uses a large share of a strict 20 g day.
How the verdict works
Each food is checked at a typical serving, not per 100 g, because nobody eats 100 g of butter or a single gram of rice. The net carbs in that serving are compared with a strict keto day of 20 g net carbs:
| Verdict | Share of a 20 g day |
|---|---|
| Keto-friendly | Under 10% (under 2 g) |
| In moderation | 10–30% (2–6 g) |
| Not keto-friendly | Over 30% (over 6 g) |
Net carbs are total carbohydrate minus fibre, from USDA FoodData Central. On a looser 50 g low-carb plan, many "moderation" foods fit comfortably.
Not in the list?
For packaged foods, use the net carb calculator with the numbers from the label. In the Ketora app you can also scan a barcode. Browse every food in the keto food list, or download the full table from open data.
Frequently asked questions
How do I know if a food is keto?
Check its net carbs (total carbs minus fibre) in the portion you actually eat. Under about 2 g per serving fits any keto day easily; over about 6 g uses a large share of a strict 20 g day.
Is it keto if it is low in sugar?
Not necessarily. Starch counts too — bread, rice and potatoes are low in sugar but high in net carbs.