Folsäure

Folate, also known as folic acid or vitamin B9, is a water-soluble B-vitamin essential for numerous biological processes. It acts as a cofactor in one-carbon metabolism, facilitating the transfer of methyl groups necessary for the synthesis of DNA, RNA, and proteins. Folate is obtained from dietary sources and synthesized by gut microbiota, with absorption occurring in the small intestine. Clinically, folate is crucial for cell division and growth, making it particularly important during periods of rapid growth such as pregnancy and infancy. Deficiency in folate can lead to megaloblastic anemia and has been associated with neural tube defects in developing embryos. Conversely, excessive folate intake may pose risks, such as promoting the growth of precancerous cells. For athletes and biohackers, maintaining optimal folate levels is important for energy metabolism and cognitive function. However, researchers found that folate levels can be influenced by factors such as diet, alcohol consumption, and genetic variations affecting absorption and metabolism. Testing for folate levels typically does not require fasting, but consistent timing of tests may improve comparability. Interfering factors include recent alcohol intake and certain medications that affect folate metabolism.