Which of the following nutrients is recognized as a precursor to Vitamin A?

Beta-carotene is recognized as a precursor to Vitamin A because it is a type of carotenoid found in many fruits and vegetables, particularly those that are orange, yellow, and dark green in color. When consumed, beta-carotene is converted by the body into retinol, the active form of Vitamin A. This conversion is important for various bodily functions, including vision, immune function, and skin health.

Vitamin C, while essential for overall health and plays a role in collagen synthesis and antioxidant protection, does not serve as a precursor to Vitamin A. Folic acid is vital for DNA synthesis and repair, particularly during periods of rapid growth, such as pregnancy, but it is not involved in the conversion to Vitamin A. Calcium is crucial for bone health and other physiological processes, but it also does not relate to Vitamin A synthesis. Thus, the identification of beta-carotene as the precursor to Vitamin A highlights its significance in maintaining adequate Vitamin A levels in the diet.