Men can take folic acid if they are preparing for pregnancy or suffering from megaloblastic anemia and other indications, but the specific number of tablets to be taken needs to be based on the specifications of the drug as well as the specific condition, under the guidance of the doctor. Folic acid is a kind of anti-anemia drugs, clinically used in the treatment of various causes of folic acid deficiency and folic acid deficiency caused by megaloblastic anemia, pregnancy, lactating women preventive administration, and chronic hemolytic anemia caused by folic acid deficiency. Men who take oral folic acid during preparation for pregnancy can increase male sperm count and improve sperm activity. However, men can also take folic acid if they have megaloblastic anemia or folate deficiency due to chronic hemolytic anemia. There are various specifications of folic acid on the market at present, while the dosage is different for different purposes of medication, for example, different dosages are used for prevention and treatment. The exact number of tablets to be taken needs to be based on the specifications of the medication as well as the specific condition under the guidance of the doctor. Folic acid can be used for adults, children, pregnant and lactating women, but megaloblastic anemia caused by vitamin B₁₂ deficiency cannot be treated with folic acid alone. Long-term use of folic acid may cause gastrointestinal discomfort such as nausea and bloating. Taking a large amount of folic acid will also affect the absorption of the trace element zinc, which can make urine yellow. It is recommended that men take folic acid as prescribed by their doctors. If there are no such conditions, additional folic acid supplementation is usually not needed.