Which circumstance is most likely to negatively impact one's ability to get adequate vitamin D?

Question

Quizplus · Accepted Answer

Elderly individuals have a reduced ability to produce vitamin D in their skin through sun exposure, which can negatively impact their ability to obtain adequate vitamin D. Additionally, elderly individuals may be more likely to spend time indoors, further limiting their exposure to sunlight. Living in southern climates, having fair skin, and living in rural areas do not necessarily negatively impact one's ability to get adequate vitamin D.

Which Circumstance Is Most Likely to Negatively Impact One's Ability