How Many Gut Types Are There? Understanding Enterotypes and Individual Variation
                                
                                
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                                    5 min read                                
                            
                                Research in 2011 initially suggested humans possess three distinct gut “enterotypes,” characterized by dominant bacteria such as *Bacteroides*, *Prevotella*, and *Ruminococcus*. However, the question of how many gut types are there has evolved, revealing a much more complex picture of individualized microbial ecosystems.