Pine nuts have high nutritional value. Every100g of pine nut meat contains16.7g of protein, 63.5g of fat, 9.8g of carbohydrate, 78mg of mineral calcium, 236mg of phosphorus, 6.7mg of iron and unsaturated fatty acids. The fat components in pine nuts are mainly unsaturated fatty acids such as linoleic acid and linolenic acid, which can soften blood vessels and prevent atherosclerosis. Therefore, the elderly often eat pine nuts, which can prevent cardiovascular diseases caused by elevated cholesterol. In addition, pine nuts are rich in phosphorus, which is also good for people's brains and nerves. It has certain auxiliary therapeutic effect on elderly patients with chronic bronchitis, bronchial asthma, constipation, rheumatoid arthritis, neurasthenia and dizziness.