Calcium
Also known as: calcium carbonate, calcium citrate, Calcichew, Adcal
An essential mineral for bone health, muscle function, and nerve signalling. Postmenopausal women are at increased risk of calcium deficiency and osteoporosis due to declining oestrogen. The UK RNI is 700mg/day, though many postmenopausal women require supplementation alongside vitamin D, particularly if dietary intake is low.
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Community Experiences
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Research Context
Research context compiled from published sources
How does Calcium work?
Calcium is incorporated into bone matrix as hydroxyapatite, providing structural strength. Also essential for muscle contraction, nerve impulse transmission, blood clotting, and intracellular signalling. Adequate calcium intake reduces parathyroid hormone (PTH) secretion, which otherwise mobilises calcium from bone.
Research Depth
Well Studied
Extensive human research over many years, including randomized controlled trials.
Long-Term Evidence
Well Characterized
Decades of long-term safety data available from human use.
Known Interactions
Reported Contraindicated Populations
Published Dose Ranges
Dose ranges from published research. Individual dosing should be determined with your healthcare provider based on your specific circumstances.
Factual research context from published sources — not a safety assessment or recommendation. Research classifications may change as new data emerges.
Related Approaches
Other Supplement tracked on Narrated.
Data last updated: No data yet