Zeolite acid (un)stability as major disadvantage for its human consumption

This study was conducted to examine the potential harmful effects of zeolite consumption in daily supplementation. The research focused on the acid stability of zeolite in HCl solution at pH values ranging from 1.5 to 3, corresponding to gastric pH levels. The initial zeolite sample, as well as the samples subjected to acidic treatment, were characterized using X-ray diffraction (XRD) method, and their chemical composition was analyzed. The results obtained indicate that the crystalline structure of zeolite was not disrupted during the treatment. At a pH of 1.5, up to 2% of aluminum leached into the solution, while at higher pH values, no aluminum leaching was observed. These findings underscore the need for cautious consideration of zeolite supplementation due to potential aluminum release in highly acidic environments.