Question

vitamin d is important for bone health because it
multiple choice
regulates the absorption and excretion of calcium and phosphorus.
is needed for collagen synthesis.
is part of the crystalline structure of bones.
can be converted into calcium in the liver and kidneys.

Explanation:

Vitamin D plays a crucial role in bone health. It helps in the absorption of calcium and phosphorus from the diet. Calcium and phosphorus are essential minerals for bone formation and maintenance. Without proper regulation of their absorption and excretion (which vitamin D does), bone health can be compromised. Collagen synthesis is more related to vitamin C. Calcium forms the crystalline structure of bones, not vitamin D. Vitamin D is converted to its active form (not calcium) in the liver and kidneys.

Answer:

regulates the absorption and excretion of calcium and phosphorus.