Nutrition referenceWalnuts are a tree nut rich in healthy fats, eaten raw or in baking. Per 100 g they provide about 730 calories with 14.6 g protein.
Nutrition facts
2346394 · Foundation Foods, April 2026 (2026-04-30 export)
170187 · SR Legacy, final April 2018 release
About this food
Walnuts are the edible seeds of the walnut tree, known for their wrinkled shells and brain-shaped kernels. They are eaten raw or roasted and used in baking, salads, and cooking.
Nutritionally, walnuts are very high in fat. Per 100 g they provide about 730 kcal, 10.9 g of carbohydrates, 14.6 g of protein, 69.7 g of fat, and 5.2 g of dietary fiber.
Walnuts are energy-dense, so they are usually eaten in small portions. Use the serving sizes below to estimate portions when logging.
Plan your portion
Nutrition values are reported per 100 g. A typical ounce (28 g) provides roughly 204 kcal. Use the serving sizes below to estimate portions when logging.
| Serving | Weight | Calories | Carbs | Protein | Fat |
|---|---|---|---|---|---|
| 100 g | 100 g | 729.6 kcal | 10.9 g | 14.6 g | 69.7 g |
| 1 oz | 28 g | 204.3 kcal | 3.1 g | 4.1 g | 19.5 g |
| 1/4 cup | 30 g | 218.9 kcal | 3.3 g | 4.4 g | 20.9 g |
Use the weight of the edible portion in the food state shown above.
Questions and answers
Walnuts provide about 730 calories per 100 g. A typical ounce (28 g) provides roughly 204 calories.
Yes. Walnuts provide about 69.7 g of fat per 100 g.
Walnuts provide about 14.6 g of protein per 100 g.
