Calcium Hydroxyapatite
A whole-bone mineral complex that provides not just calcium, but also phosphorus, collagen, and growth factors in their natural ratios.
Also known as: MCHA • Microcrystalline Hydroxyapatite • Ossein Hydroxyapatite
Overview
Calcium Hydroxyapatite is a form of calcium that is naturally found in human bone and teeth. As a supplement, Microcrystalline Hydroxyapatite (MCHA) is derived from bovine bone and provides a comprehensive bone support formula. Unlike other calcium salts (like carbonate or citrate), MCHA contains calcium and phosphorus in their physiological ratio, along with Type I collagen, protein growth factors, and other trace minerals that naturally occur in bone tissue. This is thought to provide a more complete and effective building block for maintaining healthy bone density.
Key Benefits
Superior Bone Support
Provides a full spectrum of bone nutrients, including calcium, phosphorus, and collagen, in their natural forms.
May Be More Effective Than Calcium Alone
Some studies suggest MCHA is superior to calcium carbonate in slowing bone loss.
Slow-Release Calcium
The crystalline structure allows for a slower, more sustained release of calcium, which may be gentler on the system and prevent blood calcium spikes.
Dosage & How to Take
Dosing is based on the elemental calcium content, typically aiming for 500-1000mg of calcium per day in divided doses.
| Purpose | Dose | Notes |
|---|---|---|
| Osteopenia/Osteoporosis Prevention | 500-1000mg elemental calcium from MCHA daily | Split into two doses (e.g., 250-500mg twice a day). |
Best Time to Take
Take with meals to enhance absorption and reduce the risk of digestive upset.
With or Without Food
Yes, with food.
Forms & Bioavailability
| Form | Absorption | Best For | Notes |
|---|---|---|---|
| Microcrystalline Hydroxyapatite (MCHA) | Excellent | Comprehensive bone nourishment. | Ensure it is sourced from a reputable manufacturer that certifies it as free from heavy metals and BSE. |
Side Effects & Safety
Common
- Gas, bloating, or constipation, similar to other calcium supplements.
Rare
- Hypercalcemia (high blood calcium) with excessive intake.
Contraindications
- Individuals with hypercalcemia or a history of kidney stones should consult a doctor.
Interactions
Calcium can decrease the absorption of these drugs.
Calcium can interfere with the absorption of thyroid medication.
Scientific Research
A multicenter, placebo-controlled, double-blind, randomized study of the effect of microcrystalline hydroxyapatite concentrate on postmenopausal bone loss
MCHA was shown to be significantly more effective than calcium carbonate in preventing bone loss in postmenopausal women.
Food Sources
Frequently Asked Questions
Medical Disclaimer
This content is for educational and informational purposes only and is not intended as medical advice. Always consult with a qualified healthcare professional before starting any supplement regimen, especially if you have pre-existing health conditions or are taking medications. The statements on this page have not been evaluated by the Food and Drug Administration.