A folic acid pill supports the body’s folate pool, contributing to core processes like DNA synthesis and red blood cell production. Clinically, it is most often used for preconception/early pregnancy support of neural tube development and for treating folate-deficiency megaloblastic anemia. It may also indirectly support homocysteine metabolism in some contexts. It is not a “metabolism reset” product, and benefits can be limited if there is no deficiency or clear indication. Correct indication and duration are the key levers for meaningful outcomes.