This review discusses how nutrition influences brain health, particularly during aging. It emphasizes that a diet rich in antioxidants, anti-inflammatory components, and essential nutrients—like those found in fruits, vegetables, nuts, and fish—can reduce cognitive decline and lower the risk of neurodegenerative diseases such as Alzheimer’s. The paper highlights the gut microbiota's role in brain function and the mechanisms through which dietary patterns like the Mediterranean diet benefit cognitive health. It also addresses the detrimental effects of poor nutrition, obesity, and stress on brain aging and function.
Adopting a Mediterranean diet—high in fruits, vegetables, nuts, olive oil, and fish—may support brain health by reducing inflammation and oxidative stress. Combining this with physical activity and stress-management amplifies the benefits. While these recommendations are robust, they derive from observational and interventional studies; personalized dietary plans may offer optimal results.