Calcium absorption

Definition

Calcium absorption is the process by which calcium is taken up from the diet and absorbed into the bloodstream through the intestines. It is crucial for maintaining bone health and various physiological functions.

5 Must Know Facts For Your Next Test

1. Vitamin D is essential for efficient calcium absorption in the intestines.
2. Calcium absorption decreases with age, requiring adjustments in dietary intake or supplementation.
3. Certain medications, like bisphosphonates, work by altering calcium absorption to treat bone disorders.
4. Conditions such as hypoparathyroidism can impair calcium absorption, necessitating pharmacological intervention.
5. Dietary factors, such as high oxalate or phytate intake, can inhibit calcium absorption.

Review Questions

• Why is Vitamin D important for calcium absorption?
• How do bisphosphonates affect calcium absorption?
• What dietary factors can inhibit calcium absorption?

Related terms

Vitamin D:

A fat-soluble vitamin that enhances intestinal absorption of calcium.

Bisphosphonates:

A class of drugs that prevent the loss of bone density by altering the cycle of bone formation and breakdown.

Hypoparathyroidism:

A condition characterized by insufficient production of parathyroid hormone, leading to impaired calcium regulation.