Is Cheddar cheese keto?
Keto-friendly 0.4 g net carbs per one slice (28 g) — 2% of a 20 g keto day.
Short answer: Yes. One slice (28 g) of cheddar cheese: 0.4 g net carbs — 2% of a strict 20 g keto day — with 9.3 g fat and 7 g protein.
Log cheddar cheese in KetoraFree. Weigh it once and Ketora remembers your portion.
Hard aged cheeses like cheddar have very little lactose left, so their carbs are minimal. They are calorie-dense, which matters if weight loss stalls.
How cheddar cheese fits a keto carb budget
On a 20 g day you could eat about 50 servings before reaching the limit — in practice cheddar cheese will never be what pushes you over.
Worked example. 28 g of cheddar cheese = 0.4 g total carbs − 0 g fibre = 0.4 g net carbs, 9.3 g fat, 7 g protein and 113 kcal.
Buying a packaged or flavoured cheddar cheese product? Run its label through the net carb calculator — added sugars change the picture quickly.
Nutrition facts
| Nutrient | Per 100 g | Per one slice (28 g) |
|---|---|---|
| Calories | 403 kcal | 113 kcal |
| Fat | 33.1 g | 9.3 g |
| Protein | 24.9 g | 7 g |
| Total carbohydrate | 1.3 g | 0.4 g |
| Fibre | 0 g | 0 g |
| Net carbs | 1.3 g | 0.4 g |
Where the energy comes from:
How to eat cheddar cheese on keto
- Baked cheddar crisps replace crackers.
Keto recipes with cheddar cheese
- Keto Egg Muffins with Spinach and Cheddar
- Keto Burger Bowl
- Keto Beef Chili (No Beans)
- Keto Cobb Salad
- Keto Shakshuka
- Crustless Bacon and Spinach Quiche
- Bacon-Wrapped Jalapeño Poppers
- Keto Cheeseburger Casserole (Hamburger Casserole)
- Keto Chicken Quesadilla
- Keto Chicken Enchiladas
- Keto Tacos with Cheese Taco Shells
- Keto Broccoli Cheddar Soup
- Keto Nachos (Pork Rind Nachos)
Compared with other dairy foods
Cheddar cheese ranks #2 of 10 dairy foods in our database by net carbs per 100 g (lowest first). Full-fat, unsweetened dairy fits; milk sugar (lactose) is the thing to watch.
| Food | Net carbs / 100 g | Per serving |
|---|---|---|
| Eggs | 0.7 g | 0.7 g |
| Mozzarella | 2.2 g | 0.6 g |
| Heavy cream | 2.8 g | 0.8 g |
| Parmesan cheese | 3.2 g | 0.3 g |
| Cottage cheese | 3.4 g | 3.8 g |
| Greek yogurt (plain, full-fat) | 4 g | 3.4 g |
See all dairy foods ranked by net carbs →
Frequently asked questions
How many net carbs are in cheddar cheese?
Cheddar cheese has about 1.3 g of net carbs per 100 g (1.3 g total carbohydrate minus 0 g fibre), and about 0.4 g per one slice (28 g).
Can you eat cheddar cheese on keto?
Yes. A typical serving uses 2% of a strict 20 g net-carb day.
Values are per 100 g of the raw or stated food, rounded, from USDA FoodData Central. Brands and varieties differ — check the label for packaged products.