Now Folic Acid 800 mcg with Vitamin B12 Tablets For Healthy Heart is a vitamin complex to support the cardiovascular system as it helps protect against elevated homocysteine ​​levels and promotes healthy heart function. Folic acid is a very important member of the B-vitamin family required for DNA synthesis and genetic repair, making an adequate supply essential for rapidly dividing cells, such as red blood cells. Folic acid is also necessary for the synthesis of methionine from homocysteine and can help to contribute to the healthy function of both the cardiovascular and nervous system. Homocysteine is an amino acid. It is known that serum homocysteine is regulated by Vitamin B12 and folic acid, and supplementation with these vitamins decreases serum homocysteine levels. High homocysteine levels in the blood can damage the lining of the arteries. High levels may also make the blood clot more easily than it should. This can increase the risk of blood vessel blockages. Without treatment, elevated homocysteine increases your risks for dementia, heart disease and stroke. Folic acid and Vitamin B12 break down homocysteine to create other chemicals your body needs. Therefore, increasing your intake of folic acid and B vitamins may lower your homocysteine level. Vitamin B12 is important for normal blood, cells, and nerves. Vitamin B12 works closely with vitamin B9, also called folate or folic acid, to help make red blood cells and to help iron work better in the body. Folate and B12 work together to produce S-adenosylmethionine (SAMe), a compound involved in immune function and mood. Also, women who consume healthful diets with adequate levels of folic acid may reduce their risk of having a child with birth defects of the brain or spinal cord. Folic acid intake should not exceed 250% of the DV(1,000mcg).