BIOMOLECULES AND ENZYMES

Detailed explanation-1: -There are 13 essential vitamins-vitamins A, C, D, E, K, and the B vitamins (thiamine, riboflavin, niacin, pantothenic acid, biotin, B6, B12, and folate). Vitamins have different jobs to help keep the body working properly.

Detailed explanation-2: -If meat and animal products are part of your diet, here’s a list of foods that in summation contain all 13 essential vitamins. Meat (especially liver), fish (especially salmon), dark leafy green vegetables, milk, nuts, and whole grains.

Detailed explanation-3: -Teen boys should get 900 micrograms, or 3, 000 international units, of vitamin A per day, while teen girls need 700 micrograms, or 2, 333 international units of vitamin A daily.