Moving To the U.S. Messes With Your Gut Bacteria
Studies that suggest that the microbiome can influence human health or disease are often challenged because it is hard to distinguish between cause and effect. In this case, it’s unclear whether changes in the microbiome are directly contributing to the high incidence of obesity in U.S. immigrants. It may be some time before we fully understand whether a less diverse microbiome leads to obesity, or if obesity leads to a less diverse microbiome.