People who ate more healthfully showed signs of slower biological aging across 10 diet quality scores, including those for the Mediterranean, Nordic, DASH, MIND, and plant-based diets, in a German analysis of about 7,500 adults. The research, led by the German Center for Neurodegenerative Diseases (DZNE) and published in Nature Communications, found no single diet that clearly stood out from the rest.
For busy households, that is a practical message. Instead of chasing one branded plan, people may be able to choose a healthy eating pattern that fits their culture, budget, and taste. The study was observational, however, so it shows a link between diet quality and aging markers, not proof that any diet slows aging.
