Calcium｜HerbBB ingredient encyclopedia

Why supplement?

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Calcium and vitamin D together support bone mineralization and bone structure.

Nutrition consensus: Established

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Calcium is involved in muscle contraction, nerve conduction, and blood-vessel function.

Mechanism: Established

With foodTake calcium carbonate with food; calcium citrate can be taken with or without food

Best timeTwo divided doses are usually better absorbed

A single serving is usually best kept to about 500 mg of elemental calcium.

General wellnessAdults 19–50: 1,000 mg elemental calcium/day; women 51 and older and all adults 71 and older: 1,200 mg/day

Specific needsOsteoporosis or deficiency treatment doses must be set by a doctor using diet, vitamin D, and bone testing.

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.

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.

Common side effects

· Constipation

· Stomach discomfort

Rare but important

· 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.