Dr. Oz's Dieting Secrets

Breakfast is another key component to Dr. Oz's diet plan. "People who eat breakfast every day are thinner," he says. "Jump-start your metabolism with breakfast—don't miss it!"

Dr. Roizen says people should try to automate their breakfast and lunch. "Why we get so fat is we have so many choices...we want one of everything," he says.

For breakfast, Dr. Roizen says you should have the same thing or the same small variety of things every day. Steel-cut oatmeal, whole grain cereals and egg-white omelets are great options. Then, do the same thing at lunch. Find a lunch that's satisfying and stick with it. Then, come dinner time, you can enjoy a variety of options!