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Food Matrix Calcium Absorption Versus Other Popular Brands

There are two methods of comparing human absorption of minerals - by measuring areas of blood concentration-time curves and by measuring urine excretion. The benefits of Food Matrix Calcium are very apparent.

calcium_absorption_graph
24 hour Post Dose - Pre dose
Calcium Urine excretion (mg)
Calcium Carbonate Comparison
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The concentration of calcium in the blood is hormonally controlled so the latter method is used. As you can see the graph to the right shows the lack of a calcium presense in two of the test subjects.

With normal calcium carbonate supplements you are taking a 50/50 chance of it having any type of absorption.

Three different forms of calcium were utilised in this study - calcium carbonate (top chart), calcium gluconate (bottom chart) and calcium yeast (both charts).

College age subjects (18-29) participated in the study with informed consent. Each subject refrained from dairy products during the course of the experiment.

24 hour Post Dose - Pre dose
Calcium Urine excretion (mg)
Calcium Gluconate Comparison
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While the Calcium Gluconate supplement faired better the the carbonate supplement, the Food Matrix calcium supplement showed a significant absorption advantage over it.

The subjects collected a 24 hour pre-dose urine and appeared for testing after an overnight fast. The subjects ingested 500 mg of Calcium, in one of three forms, dissolved in 200 ml of orange juice. (Pauling has shown that Vitamin C does not affect calcium excretion). The subjects fasted for an additional six hours and then were allowed to eat. A 24 hour post -dose urine was collected. The experiment (pre and post -dose urine collection) was repeated for the other forms.

Independent Studies on Food Matrix Supplements Containing Calcium (in pdf format);