What 13 items does the body use to maintain health

If you are talking about vitamins, then the 13 essential vitamins your body needs are vitamins A, C, D, E, K and the B vitamins: thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyroxidine (B6), biotin (B7), folate (B9) and cobalamin (B12).

The 13 essential vitamins your body needs are vitamins A, C, D, E, K and the B vitamins: thiamine (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyroxidine (B6), biotin (B7), folate (B9) and cobalamin (B12).

The four fat-soluble vitamins—A, D, E, and K—are stored in the body’s fatty tissues. The other nine vitamins are water-soluble and therefore must be replenished regularly because they are removed from the body in your urine. Vitamin B12 is the only water-soluble vitamin that is stored in the liver.

answer: i would say the brain but it seem that you have a brain.