Is Lactase a Vitamin? The Key Differences Between Enzymes and Nutrients
                                
                                
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                                    3 min read                                
                            
                                According to scientific studies, approximately 65% of the global adult population has a reduced ability to digest lactose, the sugar found in dairy products, and relies on a specific enzyme for help. This often leads to the question, "Is lactase a vitamin?"—a common misconception that stems from its role in digestion and its availability in supplement form. In reality, lactase is not a vitamin but a biological catalyst with a very different function in the body's metabolic processes.