Lactase: What Splits Lactose into Glucose and Galactose?
                                
                                
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                                    2 min read                                
                            
                                An estimated 65% of the global adult population has a reduced ability to digest lactose after infancy, a condition known as lactase nonpersistence. This happens because the enzyme lactase, which splits lactose into glucose and galactose, declines in production over time.