<p>Old people who follow a Mediterranean diet are at a lower risk of cognitive decline, according to a study published in the journal <a href="https://onlinelibrary.wiley.com/doi/10.1002/mnfr.202300271"><em>Molecular Nutrition and Food Research</em></a>. The study provides new evidence for a better understanding of the biological mechanisms related to the impact of the diet on cognitive health in the ageing population.</p>