Diet linked to lower biological age

This study also fits with broader research on ageing and nutrition. Diets that emphasise vegetables, legumes, whole grains, and healthy fats have long been linked to better heart health and lower inflammation.

Large international studies of Mediterranean‑style eating patterns, for example, associate lower intake of saturated fats with reduced risk of cardiovascular disease and earlier death. 

Importantly for seniors, nutrition researchers at Sydney’s Charles Perkins Centre stress that extreme dieting isn’t necessary – or advisable – in older age. 

The goal is balance: enough protein to maintain muscle, fewer saturated fats, and more plant‑based foods to support overall health.  

The takeaway?  

“It’s too soon to say definitively that specific changes to diet will extend your life. But this research offers an early indication of the potential benefits of dietary changes later in life,” says Dr Andrews.  

“Future research should explore whether these findings extend to other cohorts and whether the changes recorded are sustained or predictive of long-term outcomes.” 

While no diet can turn back the clock, small, sensible changes – such as trimming fatty meats, choosing plant proteins more often, and filling your plate with colourful produce – may help your body age more gracefully.  

As always, any major dietary changes should be discussed with your GP or dietitian, especially if you manage chronic conditions. 

Related reading: University of Sydney, MSN, Aging Cell