One walnut has about 110kcal.
Walnut’s calorie is 654kcal/100g, with a walnut about 15g calculation, a walnut calorie about 110kcal.
Walnuts are a kind of oil nuts, rich in polyunsaturated fatty acids, proanthocyanidins and copper minerals, etc.; per 100g walnuts contain protein 15.23g, fat 65.21g, carbohydrates 13.71g and crude fiber 6.7g. Walnuts are rich in proteins and unsaturated fatty acids, which are beneficial to the human body.
The Dietary Guidelines for Chinese Residents suggest a weekly intake of about 70g of nuts. However, walnuts are also high-calorie food, excessive intake will lead to fat accumulation, it is recommended that 3-5 per day, moderate consumption.