American Association of Family and Consumer Sciences (AAFCS) Practice Test

Which nutrient is essential for collagen production?

1. Vitamin D

2. Vitamin C

3. Vitamin A

4. Vitamin K

The correct answer is: Vitamin C

Vitamin C is essential for collagen production because it acts as a cofactor for the enzymes involved in the hydroxylation of proline and lysine, which are critical amino acids in the collagen molecule. This hydroxylation process is necessary for the stability and strength of collagen fibers. Without adequate Vitamin C, the body cannot effectively produce collagen, leading to issues such as scurvy, which is characterized by weakened connective tissues, skin issues, and impaired wound healing. While other vitamins play important roles in different bodily functions, they do not have a direct impact on collagen synthesis like Vitamin C does. For example, Vitamin D is primarily involved in calcium metabolism and bone health, Vitamin A supports vision and immune function, and Vitamin K is crucial for blood clotting. However, none of these nutrients contribute directly to the collagen production process in the way that Vitamin C does.