Compared to light-skinned people, how much more or less sun exposure do people with dark skin need to produce enough vitamin D?

Name: Compared to light-skinned people, how much more or less sun exposure do people with dark skin need to produce enough vitamin D?
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Question

Quizplus · Accepted Answer

People with dark skin have more melanin, which reduces the skin's ability to produce vitamin D from sunlight, requiring up to three times more sun exposure compared to light-skinned individuals.

Compared to Light-Skinned People, How Much More or Less Sun