The American Gut Project and the 30 Plants a Week Challenge
                                
                                
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                                    4 min read                                
                            
                                Research from the American Gut Project, published in 2018, found that participants eating 30 or more different types of plants per week had significantly more diverse gut microbiomes compared to those who ate fewer than ten. This finding led to the popular '30 Plants a Week' challenge, a dietary strategy focused on variety over quantity to promote better gut health.