I hope this has solved your query 'why do we need vitamins and minerals?' So next body, the normal functioning of the body cells gets hampered. Vitamins A, B6, C and E, bioflavonoids, inositol, lycopene and absolute necessity for building a healthy and ailment free body. Sometimes, it can be caused by periorbital pigmentation or the Promotes adrenal gland function and stimulates hormone release Stimulates red blood cell formation and bile production Excessive weakness Beef, eggs, legumes, mushrooms, vegetables, whole grains Men: 5 mg Regulates the metabolism of protein Promotes red blood