human
My doctor says I have a vitamin deficiency. What vitamins do I need to take?
assistant
Your doctor is likely referring to the B-complex vitamins, which include thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folate (B9) and cobalamin (B12). These are all essential for your body to function properly, so it's important to get them from food or supplements.