Vitamins such as anticancer shield

Unlike carbohydrates, fats and proteins, vitamins are not an energy source, but also serve as chemical models for enzymes related to metabolic function, cell production, tissue repair and other vital processes.

Vitamin C, and precursor of vitamin A as beta-carotene, are antioxidants, and hence are considered as protectors of the oxidation of cells, and thus of degenerative diseases such as cancer.