Why are Caucasians not lactose intolerant?: The Genetics of Lactase Persistence
                                
                                
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                                    4 min read                                
                            
                                While approximately 65% of the world's population is lactose intolerant, a smaller percentage of Caucasian individuals retain the ability to digest milk into adulthood. This difference is not a biological rule, but a fascinating case of recent human evolution that explains **Why are Caucasians not lactose intolerant?**