Vitamin B9 (aka: folate, folic acid, folicin) is a water-soluble B vitamin with many rich natural sources. Vitamin B9 (folate) is required for numerous body functions including DNA synthesis and repair, cell division, and cell growth. A deficiency of folate can lead to anemia in adults, and slower development in children.
Functions of Vitamin B9
Symptoms of folic acid (vitamin B9) deficiency include anemia and mood disorders. Low levels of folic acid may contribute to depression, possibly because of a resulting lowering of neurotransmitter levels. In more extreme cases of folic acid deficiency, symptoms including macrocytic anaemia, weakness, fatigue, mood instability, problems breathing, anorexia, diarrhea, weight loss, headaches, and palpitations may occur.
Mega-doses of folic acid do not have any added therapeutic benefits. Extremely large dosages (more than 15,000 mcg) can result in digestive problems, insomnia, skin reactions, and even seizures.