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?
Per 100 g (Butter, salted). USDA FoodData Central.
Scales this reference to your portion, with no extra deductions. Calculation and units.
<0.1gnet carbs in your portion
- Total carbs
- <0.1g
- Fiber
- 0g
- Protein
- 0.8g
- Fat
- 81.1g
- Calories
- 717
The 100 g reference amount provides <0.1g net carbs and can fit common keto portions.
- 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.