Dr. Oz delivers his ultimate checklist for losing weight. Learn the best and worst diet pills, snacks and much more. Plus, find out the best day to start your diet.

Click here to watch Part 1.

Click here to watch Part 3.

Dr. Oz goes where he's never gone before. He's letting you eat fast-food and it's not what you expect. Learn which fast food meals you can eat under 500 calories while still enjoying the food you love.