Does Glucose Inhibit Lactase? Understanding the Sugar's Effect on Digestion
                                
                                
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                                    4 min read                                
                            
                                According to research from Washington University, human intestinal lactase activity is inhibited by the monosaccharides glucose, galactose, and fructose. This phenomenon is a form of product inhibition and explains how the end products of digestion can slow down the very enzyme responsible for creating them, revealing a direct answer to the question: does glucose inhibit lactase?.