Calcium absorption is primarily aided by vitamin D, which enhances its intestinal absorption. Other components like phosphorus, fiber, oxalate, and phytate can negatively influence calcium absorption. Therefore, maintaining adequate vitamin D levels is essential for calcium absorption and overall bone health. ;
Calcium absorption is greatly aided by vitamin D, which enhances its absorption in the intestines. Other factors like phosphorus and fiber can inhibit this process, and compounds such as oxalates and phytates can also interfere. Therefore, the correct answer is B. vitamin D.
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