As we know the intake of calcium supplement gradually improves the plasma calcium level and thus suppressing parathyroid secretion. Is there any definite value in what extent calcium carbonate and calcium citrate varies in view of PTH suppression?
There is a significant difference between the amount of ionised calcium between these two drugs. Anyway, one should prefer ca-citrate in case of histaminoresistent hypochlorhydria, when gastric acid is missing.
of course, especially in case of kidney failure or renal impairment, it is best to use ca-citrate.
Limestone and marble are examples of calcium carbonate. Not the most soluble stuff around. Sure, when it hits the HCl (hydrochloric acid) in the stomach, some of it could dissolve into CaCl2 (calcium chloride) and then be absorbed, but, much of it may not dissolve. One would not use calcium chloride in a salt shaker as it absorbs water pulling it right out of the air, and the crystallized salt could burn your mouth. However, in solution or in food, it is considered safe. Calcium citrate is probably just a way of extracting more money from your pocket. Dollars to donuts, it's the chloride that is in your blood stream.
yeah....got it, though calcium citrate has a better absorption profile than carbonates for its chemical nature, which may tend to an additive benefit.
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