Pyridoxine (Vitamin B6)

B₆ is required for the proper absorption of B₁₂ and the production of HCl. It plays an important role in fat metabolism. It plays a role as a coenzyme in the breakdown and utilization of carbohydrates, fats and proteins. It must be present for the production of antibodies and red blood cells. The release of glycogen for energy from the liver and muscles is facilitated by B₆. It also aids in the conversion of tryptophan to niacin. Deficiency can lead to low blood sugar and poor glucose tolerance. It can also cause water retention during pregnancy, cracks around the mouth and eyes, numbness and cramps in the arms and legs, slow learning, visual disturbance, neuritis, arthritis, and an increase in urination.