There is no secret to healthy eating. Be sure to eat a variety of foods, including plenty of vegetables, fruits, and whole grain products. Also include low-fat or non-fat dairy products, lean meats, poultry, fish, and legumes. Drink lots of water and go easy on the salt, sugar, alcohol, and saturated fat. Good nutrition should be part of an overall healthy lifestyle, that also includes regular physical activity, not smoking, and stress management. Do all things in moderation.