Peanut butter (natural, unsalted): Nutrition Facts
Peanut butter is a spread made from ground roasted peanuts. At 598 kcal per 100 g it is energy-dense, with around 22 g of protein, 22 g of carbohydrate including 5 g of fiber, and 51 g of fat. The USDA SR Legacy entry below describes the smooth, unsalted form.
| Energy (kcal) | Protein (g) | Carb (g) | Fiber (g) | Fat (g) |
|---|---|---|---|---|
| 598 | 22.2 | 22.3 | 5.0 | 51.4 |
Percent Daily Value by serving
| Serving | Energy (kcal) | Protein (g) | Carb (g) | Fiber (g) | Fat (g) |
|---|---|---|---|---|---|
| 100 g | 598 (30%) | 22.2 (44%) | 22.3 (8%) | 5.0 (18%) | 51.4 (66%) |
| 2 tbsp (~32 g) | 191 (10%) | 7.1 (14%) | 7.1 (3%) | 1.6 (6%) | 16.4 (21%) |
| 1 cup (~258 g) | 1,543 (77%) | 57.3 (115%) | 57.6 (21%) | 12.9 (46%) | 132.5 (170%) |
Percent Daily Value shows how much a nutrient in one serving contributes to a daily diet, based on the United States Food and Drug Administration reference intake of 2,000 calories a day. The FDA notes that 2,000 calories a day is used for general nutrition advice and that individual needs vary. The values below are calculated from the USDA macros for this food. FDA Daily Value on the Nutrition and Supplement Facts Labels (21 CFR 101.9), accessed 2026-06-05.
| Serving | Amount | % Daily Value |
|---|---|---|
| Energy (kcal) | 598 | 30% |
| Protein (g) | 22.2 | 44% |
| Carb (g) | 22.3 | 8% |
| Fiber (g) | 5.0 | 18% |
| Fat (g) | 51.4 | 66% |
How much protein in Peanut butter (natural, unsalted)?
Peanut butter (natural, unsalted), smooth, unsalted, contains 22.2 g of protein per 100 g, per the USDA FoodData Central entry cited below. A typical 2 tbsp (~32 g) serving therefore provides about 7.1 g of protein.
How many calories in Peanut butter (natural, unsalted)?
Peanut butter (natural, unsalted), smooth, unsalted, supplies about 598 kcal per 100 g. A 2 tbsp (~32 g) serving works out to roughly 191 kcal.
Common serving sizes
- 2 tbsp (~32 g): 191 kcal, 7.1 g protein, 16.4 g fat
- 1 cup (~258 g): 1,543 kcal, 57.3 g protein, 132.5 g fat
Related guides
Source: USDA FoodData Central, fdcId 172470, accessed 2026-05-29
References
- Peanut butter, smooth style, without salt - USDA FoodData Central. USDA FoodData Central. Accessed 2026-05-29.
Last reviewed: 2026-05-29