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What Organ Makes Vitamin D?

Published in Kidney Function 2 mins read

The kidneys are the organ that produce vitamin D, which is a hormone that impacts the immune system and controls blood calcium concentration.

The Role of Kidneys in Vitamin D Production

  • The kidneys convert a precursor form of vitamin D into its active form, also known as calcitriol.
  • Calcitriol is crucial for calcium absorption in the intestines and maintaining bone health.
  • This hormone is essential for a healthy immune response.

Understanding Vitamin D

Vitamin D Term Description
Calcitriol The active form of vitamin D, produced by the kidneys.
Ergocalciferol Also known as vitamin D2; obtained through dietary sources.
Calcidiol An intermediate form of vitamin D, which is converted to calcitriol in the kidneys.
Cholecalciferol Also known as vitamin D3; produced in the skin with exposure to sunlight or through diet.

How Vitamin D Impacts the Body

  • Bone Health: Vitamin D ensures proper calcium absorption, which is essential for strong bones.
  • Immune System: Vitamin D has a significant impact on immune system function and its ability to fight off infections.
  • Calcium Levels: The vitamin D produced by the kidneys helps maintain the correct concentration of calcium in the blood.

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