NANP Board Practice Exam

A deficiency of which vitamin can negatively impact the synthesis of protein throughout the body?

1. Vitamin A

2. Vitamin B6

3. Vitamin C

4. Vitamin D

The correct answer is: Vitamin A

Vitamin A is essential for the proper functioning of our body, including protein synthesis. A deficiency of this vitamin can cause a variety of health issues, including a negative impact on protein synthesis. This is because vitamin A is needed for the development and maintenance of healthy cells, including the cells responsible for the production of protein. Therefore, a deficiency of vitamin A can lead to impaired protein synthesis throughout the body. Options B, C, and D do not play a direct role in protein synthesis and therefore, deficiencies of these vitamins would not impact this process. Vitamin B6 is important for the metabolism of proteins, but a deficiency would not directly affect protein synthesis. Vitamin C and D are mainly involved in other bodily functions such as immune system and bone health, respectively.