Calcium is the most abundant mineral in the body. About 99% of this essential nutrient is contained in bones and teeth with the rest being in blood and other tissues. Calcium is needed for strong bones and teeth and for nerve conduction, muscle contraction, heart muscle function, blood pressure regulation, glycogen to glucose conversion, initiation of blood clotting, many hormone actions, many enzyme activities and making acetylcholine, an important chemical for nerve transmission. Calcium plays a part in the prevention of colon cancer.
Most importantly, calcium opposes phosphorus as a buffer to maintain the acid-alkaline balance of the blood and is critical for milk production in the nursing of infants.
Calcium absorption in the small intestine is complex and has specific requirements. (more…)