1. Thus calcitriol also stimulates the intestinal absorption of phosphate. 2. Several studies have measured the intestinal absorption of fructose using the hydrogen breath test. 3. The molecules as a class have low bioavailability due to both metabolism and poor intestinal absorption . 4. Whether the increased fat loss is due to an effect on small intestinal absorption is not clear. 5. Acrodermatitis enteropathica is a rare autosomal recessive disorder, which is a consequence of a defective intestinal absorption . 6. The debate regarding sterol vs . stanol safety is centered on their differing intestinal absorption and resulting plasma concentrations. 7. A working model describes the defect in the HFE gene, where a mutation puts the intestinal absorption of iron into overdrive. 8. Their swift intestinal absorption coupled with their thermostability leads to rapid development of toxic effects in a relatively short period of time. 9. The protein encoded by this gene functions as a half-transporter to limit intestinal absorption and promote biliary excretion of sterols. 10. During pregnancy, paromomycin is the preferred treatment drug because of its poor intestinal absorption , and thus less exposure to the fetus.