ISSA Nutritionist Practice Exam

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Study for the ISSA Nutritionist Exam with confidence. Engage with targeted questions and interactive tools that enhance your understanding of nutrition concepts. Prepare effectively for your certification and elevate your career!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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Which vitamin is primarily associated with collagen synthesis?

Vitamin A
Vitamin B6
Vitamin C
Vitamin D

The correct answer is: Vitamin C

Vitamin C plays a critical role in collagen synthesis, which is essential for maintaining skin health, connective tissues, and overall structural integrity of various tissues in the body. It acts as a co-factor for the enzymes prolyl hydroxylase and lysyl hydroxylase, which are crucial for the post-translational modification of collagen molecules. These modifications allow for the stability and strength of collagen fibers, thus facilitating tissue repair and regeneration. While other vitamins have important roles in various bodily functions, their connections to collagen synthesis are not as direct or significant as that of Vitamin C. For instance, Vitamin A is primarily involved in vision and cellular communication, Vitamin B6 helps in amino acid metabolism and neurotransmitter synthesis, and Vitamin D is mainly associated with calcium metabolism and bone health.