Bentonite and Nutrient Absorption
There is good evidence that bentonite does not interfere with nutrient absorption, based upon both human and animal research. In fact, bentonite has been shown to improve nutrient absorption.
A human study over three months showed that bentonite taken daily did not interfere with the absorption of important vitamins and minerals. [Afriye-Gyawu E. et al, Food Addit Contam Part A Chem Anal Control Expo Risk Assess, 25(7):872-74 (July 2008)]
There is also a one-year study evaluating the effect of bentonite on health and nutrition in several hundred beef cattle. There was a control group, a group with 2% bentonite added to the food and a group with 3% bentonite added to the food. During the year, the animals in the bentonite groups stayed healthier overall than the animals in the control group. Bentonite-fed animals had higher levels of calcium and magnesium in the blood than control animals. Bentonite-fed animals gained more weight. By the end of the year, animals fed 3% bentonite gained an average of 25.5 Kg (56.2 pounds) more than control animals, while animals fed 2% bentonite gained an average of 18.3 Kg (40.3 pounds) more than control animals. [L. Slanina et al. Vet Med (Praha), 1975 Feb;20(02):65-73]
Many farmers add bentonite to the food of different types of animals because it helps them stay healthier and gain more weight, which means that they are getting more nutrition out of their food. Based upon human and animal research, as well as consultation with experts, we believe that bentonite supports overall health and does not interfere with nutrient absorption.