Which nutrient is created in the skin when exposed to sunlight?

Question

BlackTom AI · Accepted Answer

Let's break down the question and evaluate each nutrient option in light of sunlight exposure.

Option a: vitamin B6. This vitamin is primarily obtained from diet and synthesized by some gut bacteria, but it is not produced in the skin in response to sunlight. Therefore, this choice does not reflect the skin’s sun-driven synthesis process.

Option b: vitamin B12. Vitamin B12 is produced by certain bacteria and is typically obtained from animal-based foods or fortified products in the human diet. It is not formed in the skin due to sunlight exposure, so this option misrepresents the skin’s photochemical activity.

Option c: vitamin D. Vitamin D is well-known for its synthesis in the skin when exposed to ultraviolet B (UVB) radiation from sunlight. The UVB converts 7-dehydrocholesterol in skin cells to previtamin D3, which is then converted to active vitamin D in the body. This describes the classic sunlight-driven vitamin production pathway.

Option d: vitamin E. Vitamin E is primarily obtained from dietary fats and oils and stored in body tissues. It does not have a skin-driven synthesis pathway triggered by sunlight, so this option does not align with the sun-induced production concept.

In summary, among the listed nutrients, the one associated with skin synthesis upon sun exposure is vitamin D, while the other options do not have a skin-generated production mechanism linked to sunlight.

Which nutrient is created in the skin when exposed to sunlight?

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