Dicalcium phosphate dihydrate is a calcium phosphate salt that supplies calcium and phosphorus. It comes as a tablet or powder, has a neutral taste, and blends easily into multivitamins.
People mainly use it to fill dietary gaps and keep calcium levels steady. Some also take it for the phosphorus content. The form does not need stomach acid for breakdown, though taking it with food can settle the stomach.
Calcium supplements like this one may raise the chance of kidney stones or high blood calcium, especially if you have a history of kidney trouble, parathyroid issues, or weak kidneys. High doses can block iron, zinc, or magnesium uptake. Separate calcium from those minerals by at least 2 hours. Check with a doctor before combining with thyroid drugs, bisphosphonates, or certain antibiotics like tetracyclines and fluoroquinolones.