Can I take folic acid during my menstrual period?

Today’s younger generation places increasing emphasis on eugenics and healthy childbearing. Many women begin preconception preparation before pregnancy. As we know, folic acid supplementation is recommended during this preconception period. However, even with diligent preconception efforts—including consistent folic acid intake—some women still do not conceive. When conception does not occur, menstruation naturally resumes. Menstruation is a special physiological phase requiring attention to both lifestyle and dietary habits. Medications should not be taken indiscriminately during this time. A common concern among women preparing for pregnancy is whether it is safe to take folic acid during menstruation.

Can you take folic acid during your period?

Yes, women may safely take folic acid during menstruation. Folic acid is a B-vitamin supplement with no strict timing requirements—it can be taken at any time of day without restrictions. Taking folic acid during menstruation has no adverse effects on either the body or menstrual flow.

For women of childbearing age, it is recommended to begin daily folic acid supplementation three months prior to conception. This significantly reduces the risk of fetal neural tube defects (NTDs). Folic acid supplementation can prevent up to 80% of NTD cases. Women with a prior history of delivering a baby with an NTD are especially advised to take an appropriate dose of folic acid.

Can folic acid cause menstrual delay?

1. Folic acid does not cause menstrual delay. Folic acid is a B-vitamin essential for red blood cell production, as well as for synthesizing neurotransmitters such as norepinephrine and serotonin. It also supports DNA synthesis (the body’s genetic material), maintains normal brain function, and constitutes an important component of cerebrospinal fluid. Thus, folic acid plays a critical role in supporting fetal nervous system development and preventing neural tube defects.

2. Folic acid does not cause menstrual delay. Its primary clinical uses include treating folic acid deficiency–related anemia and preventing fetal neural tube defects. Generally, a menstrual cycle variation of up to seven days earlier or later than expected is considered normal. Factors such as environmental changes, emotional stress, or work- or study-related pressure may also contribute to temporary menstrual irregularities.

The above provides an overview of whether folic acid may be taken during menstruation. We hope this information is helpful to you.