Dr. Oz's One-Day Diet

A one-day diet? Ah, you're thinking, there's a trick to this. And you're right. But it's one that you're going to want to play on yourself.

Of course, we all know that in one day you won't fit into Angelina Jolie's castoffs. But you will have proved to yourself that you can do it — which will give you the confidence and courage to try it for one more day. So often we lose sight of our goals, particularly when we catch sight of a slab of cheesecake that reminds us how "deprived" we've been. On the One-Day Diet, every day is the first day.

Now, here's your first dose of motivation: You can lose up to two inches and 10 pounds in four weeks by following our meal plan. Just as important: Follow these simple rules that will help you zero in on key risk factors for weight gain — and conquer them once and for all. 

Related: See the full One-Day Diet plan

Rule 1: Renew Your Vows Daily

Start each morning anew, and recommit to sticking to the plan one day at a time, day after day. That helps you keep the energy and motivation that you always bring to a new project...and that can fizzle out once you see how challenging your undertaking is.

As you get out of bed, repeat this mantra: "I am going to follow my plan for the next 24 hours" — and remind yourself of the reasons (Your health? That gorgeous little black dress you bought on sale?) you want to lose weight.

Rule 2: Do Something Completely Different Every Day

Add what we call the "George Costanza element" daily. It's based on the Seinfeld character who, in one episode, decided to turn his life around by doing the opposite of what he usually did. (And it worked — at least for 30 minutes.)

Doing something different can help shake up your thought patterns and challenge old habits like "I'm tired; I need a Cinnabon." It's like traveling in a country where they drive on the left-hand side of the road: You're forced to pay more attention to traffic patterns and where all the gears and gadgets are in your car.

Being more mindful about how and when you eat, how you think when you're under stress, and what you could be doing instead will put you in the driver's seat when it comes to your diet. No more popping handfuls of candy, skipping breakfast, or reaching into your grab bag of excuses for why you can't exercise today.