Passive diffusion sites located in the latter part of the small intestine absorb maximum amounts of calcium in an alkaline pH. Soluble chelated calcium present in Totally CALCIUM remains soluble in alkaline pH environments. All other inorganic calcium salts like carbonate, phosphate, etc. are not soluble in an alkaline pH. The absorption of calcium at passive diffusion sites does not depend on the presence of Vitamin D, hormones, stomach acid, dosage level, or age.
The presence of probiotic bacteria in the intestine prevents phytic acid from binding with calcium. Calcium that binds with phytic acid is not available to the body, making probiotic bacteria essential for calcium absorption. Ingredients in Totally CALCIUM create a favorable environment in the intestine for the growth of probiotic bacteria.