Be Wary of Coral Calcium and Robert Barefoot: Site offers a strong rebuttal to the health and safety claims made by purveyors of coral calcium. Includes references.
Calcium Absorption and Estrogen Activity: Exchange between bone calcium and blood serum calcium, effect of estrogen, chelates, nonchelates, acid/alkaline balance, and a successful clinical study.
Calcium Chloride: Full prescribing information from RxList.
Calcium for Better Health: Ohio State University Extension fact sheet providing basic information and guidelines.
Calcium Gluconate: Full prescribing information from RxList.
Calcium--Nutritional Health Information: Overview of calcium including its functions, food sources, and effects on the human body.
Calciuminfo.com: Online calcium resource from the makers of Tums.
Caltrate: Information on this company's calcium supplements.
Carbonated Water and Calcium: Dr. Donnica Moore discusses carbonated water and caffeinated beverages' effects on calcium levels in this question and answer format.
Coral Calcium and the Deep Down Truth: An article that disputes advertisers' claims about the so-called benefits of this supplement.
Coral Calcium: Is It Hot or Is It Not?: An article that gives reasons for the dismissal of hype and marketers' claims that this supplement is a cure-all.
Keep Kids Healthy: Calcium Requirements: Article about the nutritional requirements and dietary sources for this mineral.
Nutritional Treatment of Lice: Offers information about calcium and its deficiency. Includes the cell salts and other conditions.
The EF-Hand Calcium-Binding Proteins Data Library: Home of the calcium-binding protein database. Structure determination of calcium-binding proteins and nucleic acid fragments in solution by nuclear magnetic resonance.
Vegetarian Society of the United Kingdom: Calcium: A complete reference on calcium for the general public.
WebHealth: Calcium Research: A current research briefing, including a list of popular research topics.