Vitamin B12 and Folate work together to help maintain the health of the gastrointestinal tract, nervous system and the metabolism of protein and fats.* Both maintain homocysteine levels that are already in the normal range and folate may reduce the risk of neural tube birth defects.* This formula contains the methylated forms of B12 (methylcobalamin) and folate (Metafolin L-5-MTHF), considered to be the most bioavailable and physiologically active forms.*