One of a team of substances that features beta-carotene, alpha-carotene, and beta-cryptoxanthin that are transformed into supplement A and are referred to as provitamin A carotenoids. The only real understood role of carotenoids would be to behave as a source of supplement A in the diet. Fruits & vegetables will be the primary way to obtain carotenoids in the personal diet.
1913, from German carotino
any one of a class of extremely unsaturated yellow to purple pigments occurring in flowers and pets