Nut is one of the classification of closed fruit, which usually refers to the edible kernel of plants and is also the essence of plants. Common nuts are walnuts, peanuts, melon seeds, pine nuts and chestnuts. Nuts are rich in nutrients such as protein, oil, vitamins and minerals, and have the functions of lowering cholesterol, improving skin, nourishing and strengthening brain. 1. Reduce cholesterol: Nuts are rich in oil and a lot of unsaturated fatty acids, which can effectively reduce the cholesterol content in the human body and maintain the balance between blood pressure and blood lipids. 2. Improve the skin: Nuts contain a lot of vitamins, including vitamin A, vitamin B and vitamin E, which can effectively regulate the transformation and secretion of oil in the human body and improve greasy skin and dandruff. Vitamin E also has a strong antioxidant effect, which can effectively remove free radicals in the body and maintain cell health. 3. Brain strengthening: Nuts contain various amino acids, unsaturated fatty acids, high-quality protein and other nutrients. It can directly act on brain cells, which is helpful to improve brain nutrition and play a role in nourishing and strengthening the brain.