What do kidneys do to vitamin d?

The kidneys play a crucial role in the metabolism of vitamin D. They convert inactive vitamin D, obtained from food or sunlight, into its active form, calcitriol (1,25-dihydroxyvitamin D). This active form is essential for calcium and phosphate regulation in the body, promoting their absorption in the intestines and maintaining bone health. Additionally, the kidneys help regulate the levels of vitamin D in the blood to ensure optimal physiological function.