Tuesday, May 25, 2010

Calcium Citrate takes several minutes to dissolve in water; should I be worried?

We recently received this question via email:

"I have read that Calcium Citrate is the easier form of calcium to digest. When I place the pill in water, it takes several minutes to dissolve. Is that a problem? Would it be easier to digest if I dissolved the calcium pill in water?"

It’s honestly not a problem for it to take some time for any of your supplements (or prescription pills/capsules/softgels/tablets, etc.) to dissolve in water or any other fluid. On the certificate below, USP (Pharmacopia) 30 is used to test the dissolution of the tablet. USP 30 protocol allows 45 minutes for a calcium citrate tablet to dissolve. For this particular batch, the samples dissolved in 19 minutes. When we consider that in healthy adults, it typically takes the foods we eat anywhere from 24- to 72 hours for the full digestive process, the time it takes for the tablet is very small.

Liquid products are absolutely faster at dissolving – hitting the blood stream in seconds; however, in the greater scheme of things it honestly doesn’t matter how quickly the calcium hits the blood stream and starts the absorption process, just that it does.

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