Why supplement?
Chloride
Calcium chloride is a chloride salt with high water solubility, common in liquids and sports electrolytes. The use is to supply calcium ions; chloride itself also has a role in stomach acid and fluid balance.
Bone mineralization
Calcium chloride is a source of calcium. Calcium makes up hydroxyapatite and is absorbed with vitamin D. This salt supplies elemental calcium; after adulthood, calcium alone cannot reverse an established osteoporotic image.
How to take it
A single serving is usually best kept to about 500 mg of elemental calcium.
How oftenPrefer food first and make up any gap from the product label; the usual adult total upper limit is 2,500–2,000 mg/day, depending on age.
What to watch
Cautions
People with kidney stones, high blood calcium, kidney disease, or parathyroid disease should ask a doctor first.
Take calcium supplements apart from iron, levothyroxine, and some antibiotics.
· Constipation
· Stomach discomfort
· Long-term excess may raise the risk of high blood calcium or kidney stones.
Long-term dependenceNot addictive; long-term excess may cause mineral imbalance or kidney stones.

