Vitamin M is a dietary supplement that has no official name and is not recognized by the World Health Organization (WHO). Vitamin M contains folate and has been shown to help prevent a variety of diseases, including cancer and heart disease. However, there is not enough research to determine its effectiveness and safety.
Vitamin M is an alternative to folic acid in cases where it is not absorbed or cannot be taken. It is available in tablet form, which can be taken orally or sublingually, and also in liquid form. Some people may experience discomfort after taking vitamin M, but it is usually well tolerated.