What do Vitamins do in a human body?

Your body has no way to create vitamin molecules itself, so the vitamin molecules must come in through food that you eat. The human body is known to need at least 13 different vitamins: Inside the body, vitamins are used in many unique ways. read more

The body uses the vitamin form B5 to make cholesterol and metabolize fatty acids, and vitamins B6 and B7 are necessary in order to make DNA and red blood cells. Vitamin B12 is also used to make the myelin sheath that covers nerves in the body, and is needed in order to effectively send fast signals. read more