"In a recent issue of the journal Nature, researchers studying the microbiota, or gut bacteria, of 178 older Irish citizens found they could group individuals based on the composition of their gut bacteria, which correlated with whether they lived at home, in a day-hospital, or in a rehabilitation or long-term residence care. ...
"... people living in their own homes had diets that were rich in “fiber, fruits, vegetables, grains, poultry and fish.” When they measured the composition of their gut bacteria, they found a greater diversity when compared to folks residing in assisted living facilities consuming the more institutionalized meals dominated by staples of mashed potatoes and porridge, puddings, sweetened beverages (several times a day), high-sugar ...
"... the folks living at home with a more diverse gut microbiota, scored significantly better on clinical tests measuring frailty and cognitive function. ..."