The edible part of a walnut is 6.0 grams, containing 40 calories, which needs to be consumed by walking for 27.6 minutes. Every100g of walnut contains: 58.80g of fat; Riboflavin 0.14g; 6.40 grams of sodium; Zinc 2.17g; 294.00g of phosphorus; Protein14.90g; 2.70 grams of iron.

Walnut is rich in nutritional value and has the reputation of "Long live the child", "longevity fruit" and "the treasure of health preservation". 86% of the fat in walnut is unsaturated fatty acid. Walnut is rich in copper, magnesium, potassium, vitamin B6, folic acid and vitamin B 1, and also contains fiber, phosphorus, nicotinic acid, iron, vitamin B2 and pantothenic acid. Every 50g of walnut contains 3.6% water, 7.2g of protein, 3 1 g of fat and 9.2g of carbohydrate.