A new RODAM study was published last week. In this study, we investigated how the gut microbiome composition differs between Ghanaian participants living in rural and urban Ghana and those living in the Netherlands. We observed a clear shift in the microbiome across these groups, which coincided with changes in dietary patterns. Microbial diversity declined from rural Ghana to urban Ghana to Amsterdam. Some bacterial groups were no longer detectable in participants living in Amsterdam. Participants without these bacteria more often showed risk factors for cardiovascular disease and diabetes. These findings highlight the potential role of diet and gut health in the broader context of migration and cardiometabolic health. Please find the link to the study here. Want to hear more about the study? Here is the link to an interview on BBC about the study (between minute 46 and 50).