There is a study on Amish gut flora and it's relation to the metabolic syndrome [0]. Old Order Amish are ideal for studies like that due to them having such a g

There is a study on Amish gut flora and it's relation to the metabolic syndrome [0]. Old Order Amish are ideal for studies like that due to them having such a genetically homogenous population. From a quick scan it seems like that even among the Old Order Amish there are variations between individuals gut flora, so I'm not sure they all have that "healthy gut flora" like the parent suggested. [0] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3419686/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3419686/