Is Lactobacillus fermentum the same as reuteri?
                                
                                
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                                    4 min read                                
                            
                                Historically, Lactobacillus reuteri was mistakenly classified as a member of Lactobacillus fermentum before being recognized as a distinct species in 1980. Although once considered the same, genetic analysis proves that Lactobacillus fermentum and reuteri are different, with unique characteristics and probiotic effects.