2. Elderly patients with coronary heart disease can of course eat folic acid tablets when necessary. In short, it needs to be decided according to the specific situation.

3. A new study found that people with higher folic acid intake have lower risk of developing Alzheimer's disease by taking supplements.

4. Folic acid may help to improve the memory of the elderly over 50 years old and reduce the risk of Alzheimer's disease in the elderly. Folic acid is one of the B vitamins. Dark green vegetables, whole wheat and fruits are rich in folic acid, but folic acid is often destroyed during food cooking or processing. And taking folic acid supplements can make the body absorb folic acid more easily.