Calcium 600 with D. Calcium is the most promoted
nutrient by proponents of conventional, nutritional,
and alternative medicine. The assumed need is based
on speculation that the body's calcium intake is
well below its requirements.Of the approximately
1,000 g of calcium in the average 70 kg adult body,
almost 98% is found in bone, 1% in teeth, and the
rest is found in blood, extracellular fluids, and
within cells where it is a co-factor for a number of
enzymes.