I will not soon forget my first encounter with pure calcium -- a corrosive solid, that reacts vigorously with water to release flammable hydrogen. Liquid calcium may require even more careful handling. Not too many articles in the blogosphere discuss the pure, metallic form of calcium. Many articles mention vitamin D, milk, bones, teeth, supplements, osteoporosis, nutraceuticals ... and even breast cancer.
There are some questionable claims about calcium supplements. Does calcium supplementation reduce breast cancer risk? Labeling regulations for a health claim on the relationship between calcium and a reduced risk of osteoporosis have been amended to include vitamin D.
The Office of Dietary Supplements of the National Institutes of Health publishes a Dietary Supplement Fact Sheet that mentions recommended adequate intake for calcium; what foods provide calcium; when can a calcium deficiency occur; tolerable upper limits, and many other points relating to calcium.
Some of the latest articles about calcium mention nanoparticle compounds. Large numbers of car tires are produced with nano-precipitated calcium carbonate.
Researchers have indicated that calcium ions may be involved in brain cell connections. How could that have anything to do with the reason why the memory of my first encounter with pure calcium is still so vivid after all these years?
by D Sujanani
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