How many carbs are in a Peanut Butter?
A 2 tbsp (32g) serving of Peanut Butter contains 7g of total carbs (5g net carbs), 3g sugar, 190 calories, 8g protein, 16g fat and 2g fiber.
- Calories
- 190 cal
- Carbohydrates
- 7 g
- of which Sugars
- 3 g
- Fiber
- 2 g
- Net carbs
- 5 g
- Protein
- 8 g
- Fat
- 16 g
Peanut Butter nutrition at a glance
Per 2 tbsp (32g), Peanut Butter delivers about 10% of a 2,000-calorie daily reference, 3% of the 275g daily carbohydrate reference and 7% of the 28g daily fiber reference. Sugar sits at 6% of the 50g added-sugar reference and protein contributes 16% of the 50g protein reference.
- Calories
- 594
- Carbs
- 21.9 g
- Sugar
- 9.4 g
- Protein
- 25 g
- Fat
- 50 g
- Fiber
- 6.3 g
Blood-sugar impact of Peanut Butter
Moderate glycemic impact expected. If you're monitoring blood sugar, keep an eye on total portion size and combine with protein or fat.
With 7g total carbs and 2g fiber, the net-carb figure for a 2 tbsp (32g) serving works out to roughly 5g — this is the number most keto and low-carb tracking apps use. If you're managing type 2 diabetes, pre-diabetes or reactive hypoglycemia, use total carbs for insulin dosing calculations and treat net carbs as a rough guide for meal planning.
Ways to eat Peanut Butter
- Great fit for low-carb, keto or diabetic-friendly meals — build around peanut butter without worrying about a big glucose spike.
- Use peanut butter as a satisfying snack between meals when you want to stay in a low-carb window.
- Combine peanut butter with leafy greens and olive oil for a clean, blood-sugar-friendly plate.
Frequently asked questions
Is Peanut Butter keto-friendly?
In moderation. At 5g net carbs per 2 tbsp (32g), Peanut Butter can fit a keto plan but you'll want to watch total-day carbs.
How many carbs in Peanut Butter per 100 grams?
About 21.9g of carbs, 9.4g sugar and 594 calories per 100g of Peanut Butter.
How does Peanut Butter affect blood sugar?
Moderate glycemic impact expected. If you're monitoring blood sugar, keep an eye on total portion size and combine with protein or fat.
Is Peanut Butter good for weight loss?
A serving delivers 190 calories with 8g protein and 2g fiber. Foods that are relatively high in protein and fiber per calorie tend to be more filling — with a 5% combined protein-plus-fiber-to-calorie ratio, Peanut Butter is a solid pick for a satiating, weight-loss-friendly meal.
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Open scannerSources & how these numbers are calculated
Nutrition values are consensus averages compiled from the USDA FoodData Central database for a typical 2 tbsp (32g) serving of Peanut Butter. Actual values vary with brand, variety, ripeness and preparation — always check the label on packaged products. Daily-value percentages reference the U.S. FDA 2,000-calorie adult reference (275g carbs, 50g added sugar, 50g protein, 78g fat, 28g fiber).
Content reviewed by Carb Lens editorial. Read our editorial policy for how we source, review and update food data.