Certified Dietary Manager (CDM) 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which vitamin is essential for vision health?

Vitamin B12

Vitamin D

Vitamin A

Vitamin A is essential for vision health because it plays a crucial role in the formation of rhodopsin, a pigment found in the retina that is vital for low-light and color vision. This vitamin is also important for maintaining the health of the cornea and other eye tissues. Deficiency in vitamin A can lead to night blindness and other visual impairments, highlighting its importance in overall eye health.

In contrast, while vitamin B12 supports the nervous system and the production of red blood cells, and vitamin D is important for bone health and immune function, they do not specifically contribute to vision health in the way that vitamin A does. Vitamin K is largely associated with blood clotting and bone metabolism. Thus, the unique role of vitamin A in vision makes it the correct choice for this question.

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Vitamin K

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