Are we what we eat? A group of Argentinian scientists is proving that the popular saying is, in part, true. Along with age, sex, geographic location, family, mental health, and even whether or not one has pets, all of these factors influence the composition of microbes that inhabit a person's gut: that is, the microbiota. This mixture of bacteria, viruses, and fungi is unique to each human being, and the MicrobiAr team is exploring how it changes as a person adopts a healthy, plant-based diet (which, in some cases, helps reverse type 2 diabetes).