For a new study published in the journal Gut, researchers followed 612 people aged between 65 -79 across the UK, France, the Netherlands, Italy, and Poland, who were either frail or on the cusp of frailty. Half of the participants were made to follow principles of the Mediterranean diet, while the other half continued to eat the way they normally did.
They found that those who stuck to the eating regime for a year had a lower diversity of bacteria in the gut microbiome at the end of the experiment. They also experienced a growth of good bacteria that science had previously proven to lower the risk of frailty, boost brain activity and improve the memory. The participant’s nationality or microbiome composition at the start of the study had no influence on the results.
"Our findings support the feasibility of improving the habitual diet to modulate the gut microbiota which in turn has the potential to promote healthier ageing," wrote the study authors.