What is L-5-Methyltetrahydrofolate Calcium？ L-5-Methyltetrahydrofolate calcium, which is an active form of folic acid. Folic acid itself is a water-soluble vitamin that requires a series of metabolic transformations in the human body to play its role. L-5-Methyltetrahydrofolate calcium does not need to go through this complex metabolic process, and can be directly absorbed and utilized…