The elderly are recommended to take folic acid for a long time, because there are many benefits of taking folic acid for the elderly, as follows: 1, effective nutrition of nerve endings, folic acid is one of the B vitamins, long-term use of folic acid, especially for the elderly, patients with a history of diabetes, patients with chronic radiculitis, taking folic acid has the role and benefits of nerve endings. 2, the elderly can take folic acid to Folic acid can effectively reduce the risk of coronary atherosclerotic heart disease, folic acid has the effect of repairing the endothelial cells of blood vessels, repairing the damaged epithelium of blood vessels, especially for the elderly, the previous existence of atherosclerotic plaques of coronary atherosclerotic heart disease, has a certain protective effect. 3, the elderly eat folic acid on nutrient supplementation and food absorption, digestion, have a benign promotion effect. .