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Provita Nutrition EDTA tablets are covered with 8% wt gastro resistant coat to prevent dissolution of the tablet in the stomach for at least 2 hours, long enough for it to pass through the duodenum in the small intestine. Thus, the tablet comes intact in the intestine where it quickly disintegrated by the bile and intestinal juice. EDTA’s release directly in the intestine not only increases its bioavailability within (and thus the therapeutic effect) but completely removes unwanted stomach side effects. The addition of malic acid has a synergistic effect due to its special affinities for heavy metals, especially the aluminum so present in the water.