Your personalized diet for a healthy, long life should emphasize whole, minimally processed foods. Incorporate plenty of colorful fruits and vegetables, lean proteins such as fish, poultry, and plant-based sources, whole grains like quinoa and brown rice, and healthy fats from sources like avocados, nuts, and olive oil. Hydrate with water and herbal teas. Limit refined sugars, processed foods, and excessive sodium. Adjust portions according to your activity level and individual needs.