Question

when researching a topic, a student has taken the following notes:
vitamin d comes mostly from sun exposure, but it can also come from certain foods or supplements.
deficiency in vitamin d is common, especially among older adults.
research suggests that supplementing vitamin d for people with a modest deficiency may not be linked with major or all health benefits.
vitamin d supplementation is linked to modest delays in bone loss related to age.
research has also found that vitamin d supplementation may improve lung function.
the student wants to explain the advantages of vitamin d supplementation. which choice most effectively uses relevant information from the notes to accomplish this goal?
select one answer
a supplementing vitamin d for those with a modest deficiency may not be linked with overall health benefits.
b supplementing vitamin d is linked to modest delays in age - related bone loss, and may improve lung function.
c because most vitamin d comes from sun exposure, older people who need to will therefore use vitamin d supplements.
d since vitamin d deficiency is common in older adults, this population needs supplementation to help with bone loss.

Explanation:

To explain the advantages of vitamin D supplementation, we need to focus on the positive effects. Option A talks about a lack of major benefits for modest deficiency, which is not an advantage. Option C is about the source of vitamin D, not the advantages of supplementation. Option D is about addressing deficiency in older adults for bone loss, but Option B mentions two advantages: delaying age - related bone loss and improving lung function, which are both positive effects of supplementation.

Answer:

B. Supplementing vitamin D is linked to modest delays in age - related bone loss, and may improve lung function.