Vitamin D and Calcium Absorption - Biochemistry Lesson

This video tutorial explains the importance of vitamin D in calcium absorption. It details how vitamin D is metabolized into its active form, calcitriol, which is crucial for calcium absorption in the intestines. The process involves vitamin D being converted in the liver and kidneys before aiding calcium uptake in enterocytes. The tutorial also covers the recommended dietary allowances for vitamin D and calcium across different age groups, emphasizing the need for a healthy liver and kidneys for proper vitamin D metabolism.

How does calcitriol affect the expression of calcium transporters in enterocytes?

What is the recommended dietary allowance of vitamin D for individuals over 70 years of age?

List the recommended dietary allowance of calcium for different age groups.