To find out where you stand, there is a patented RealAge test that helps determine the biological age of your body based on how you answer a series of questions. From there, individuals are given a personalized plan to help you feel younger and another list to show you which habits and behaviors are making you older than you really are.

The reccomendations are painless ways to increase your longevity. By taking a course of folate and vitamins C, D, and E, you can decrease your RealAge by more than six years. Wearing your seatbelt every time you get into a car can also make you three years younger. Just flossing your teeth can also make you six years younger.

Largely driven by concrete scientific data, every single one of the nutritional suggestions promoted by the RealAge diet has the backing of at least four notable studies done using humans. It's difficult to dispute such concrete findings. Dr. Roizen maintains that all of the foods are just as delicious as the high-fat, high-calorie choices you make day in and day out.

One of the most enticing aspects of the RealAge Diet is that it's not an all-or-nothing plan where one wrong bite will completely send you into a downward spiral. Dr. Roizen provides countless ways for you to improve your health, lose weight and take years off your life. You are the one who decides which lifestyle changes will work best for you.