Folic acid can be taken before or after meals. Folic acid is an anti-anemia drug, mainly used for various causes of folic acid deficiency and megaloblastic anemia caused by folic acid deficiency. It can also be used for preventive administration to women during pregnancy. The effect of the drug is not affected by diet, so the absorption effect is the same when taken before or after meals. However, because folic acid can cause some stimulation of the stomach, people with a weak stomach are advised to take it after meals to avoid the symptoms that can lead to stomach upset. But try to avoid taking folic acid just after eating, generally need to wait for food to be properly digested before taking, can be taken half an hour to an hour after meals. Although folic acid causes relatively few adverse reactions, rare allergic reactions, but still need to pay attention to the observation after the use of drugs, if adverse reactions, to stop the drug in time and consult a doctor.