5. Repopulate Your Kitchen With Healthy Foods. Stock up on fruits, vegetables, whole grains and healthy fats such as fish, avocados, nuts and olive oil.

Dr. Roizen points out that while following their food recommendations is important, it's the foods that you avoid that makes the difference. Foods with enriched flour, simple sugars and saturated fats should be replaced with healthy grains, fruits, vegetables and good fats such as fish, nuts and olive oil.