Butter contributes very little carbohydrate; its fat and calories still scale with the amount used. The published reference is <0.1g net carbs per 100 g.
Is Butter Keto?

YOUR PORTION
How much are you having?
Scale the published reference values to your portion.
Per 100 g (Butter, salted). USDA FoodData Central.
How this is calculated
total carbohydrate - fiber. Each published value is multiplied by your portion divided by the reference amount. No extra fiber, sugar alcohol or allulose deductions are applied here.
Grams and milliliters are not interchangeable. Household measures require a food-specific conversion; check your scale or product label.
<0.1gnet carbs in your portion
- Total carbs
- <0.1g
- Fiber
- 0g
- Protein
- 0.8g
- Fat
- 81.1g
- Calories
- 717
Butter contributes very little carbohydrate; its fat and calories still scale with the amount used. The published reference is <0.1g net carbs per 100 g.
- Net carbs (100 g)<0.1g
- Protein (100 g)0.8g
- Fat (100 g)81.1g
- Keto verdictKeto-friendly
NUTRITION FACTS
Per 100 g (Butter, salted)
Source: USDA FoodData Central reference record
Source fit: generic reference; variety, brand, or preparation may differ
Net-carb calculation: total carbohydrate - fiber
Generic reference: Butter, salted. September 2026 arithmetic review used the existing USDA snapshot accessed 2026-07-09; it was not a fresh branded-product label check.
Nutrition record reviewed 2026-09-05. Maintained by KetoLens Team.
WHY IT'S KETO-FRIENDLY
- Measure butter added to a pan sauce separately from the food cooked in it.
PREPARATION SUGGESTIONS
COOKING MEDIUM
Sauté greens, cabbage, or mushrooms in butter; finish proteins with a pat for gloss and flavor.
SALAD DRESSINGS
Whisk melted butter with vinegar-apple-cider, dijon-mustard, and herbs for a warm vinaigrette.
BAKING
Use in keto baking (e.g., almond-flour biscuits) for tender crumb and rich flavor.
COFFEE ENHANCEMENT
Blend into hot coffee (or try coffee-with-butter) for a creamy, high-fat morning option.