So you might be wondering whether we can also do this sort of thing across species, and it turns out that if you take microbes from an obese person and transplant them into mice you've raised germ-free, those mice will also become fatter than if they received the microbes from a lean person, but we can design a microbial community that we inoculate them with that prevents them from gaining this weight.
Se preguntarán si podemos hacer esto entre especies, y resulta que si tomamos microbios de una persona obesa y se los trasplantamos a un ratón criado libre de gérmenes, esos ratones también engordarán más que si reciben los microbios de una persona delgada, pero podemos diseñar una comunidad microbiana para inocularlos que prevenga el aumento de peso.