Lecture #19 - Vitamin D and Calcium Metabolism

Question 1

What is the role of Vitamin D3 in calcium regulation?

Answer 1

1. Vitamin D3 is converted in the liver to 25-OHD3 (25-hydroxyvitamin D)
2. which is then converted in the kidney to 1,25-OHD3 (Calcitriol), the active form of vitamin D that helps increase calcium absorption in the intestines and reabsorption in the kidneys.

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