Let’s go back to where we began. Is any form of calcium, whether from foods, supplements, or some new-fangled source, any better absorbed than another?

No—not enough that it would make a real difference, anyway. There are two primary forms of calcium available that have lead to this absorption controversy, so let’s take a look at them. In supplement form, calcium carbonate has the most calcium per mg at 40% while calcium citrate has about 20%. That means that fewer milligrams of calcium carbonate are needed to get the amount a person needs to take.

The . . .

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