Dr. Oz and Dr. Roizen

The 'YOU Docs'—Dr. Mehmet Oz and Dr. Michael Roizen—are back with an urgent wake-up call for millions of Americans. "We're the fattest [country] and we have the highest incidence of suffering from obesity," Dr. Oz says.

How did we become so fat? Dr. Oz and Dr. Roizen say the cause of our expanded waistlines is our larger portion sizes. For example, the typical cheeseburger now is four times the size it was in the early 1980s. You can get an order of french fries that is nearly three times as large as an order from 20 years ago. At the movies, you used to get five cups of popcorn. Now you can get a tub that holds a whopping 11 cups.

Even our plates are bigger! The typical plate from the 1970s was nine inches across. Now they're anywhere from 11 to 13 inches across.

Obesity and a sedentary lifestyle are the leading causes of premature aging, but it's not too late to turn your health around. Dr. Oz and Dr. Roizen say you can start to reverse your bad health in just four weeks.

Jillian was once a popular cheerleader, star athlete and sorority sister. In college, she started drinking and began to put on weight. After her marriage, her weight continued to climb. When she was pregnant, Jillian put on 75 pounds and tipped the scale at more than 200 pounds. Now, nine years after her son was born, Jillian admits to being 50 pounds overweight.

Jillian says a typical day includes eating a grilled Reuben sandwich with french fries for breakfast, pizza for lunch, and red meat for dinner. She also says she snacks all day long. "You know the bags you buy for Halloween? I can eat that in a day," Jillian says.

By her own admission, Jillian drinks an astonishing 300 ounces of diet soda a day. That's four six packs!

Her problems extend far beyond just looking bad. Jillian says she has so little energy she rarely does much of anything. She goes to a drive-thru bank and dry-cleaner, and has even rigged up a way to drag her trash cans to the curb in her SUV rather than walking. Jillian says she has trouble staying awake, and often sleeps for 18 hours a day. "It's called hibernation," Dr Oz says.

Jillian says her life is out of control and she's ready for a serious lifestyle change. "I feel like I'm just watching life go by instead of participating in it," she says.
Dr. Oz and Dr. Roizen make a house call

To help her turn her life around, Dr. Oz and Dr. Roizen make a surprise visit to Jillian's house. To find out exactly what Jillian is putting in her body, the "You Docs" perform a surprise inspection of the food in her kitchen.

Dr. Oz and Dr. Roizen separate the food in Jillian's kitchen into two piles—food that's good for you and food that's not.
Thinning the herd

The first items were all of Jillian's drinks, including soda and bottled iced tea. They're both just sugar and water, so they go on "the bad table." "If one of the first four or five ingredients is high fructose corn syrup—that's another word for sugar, and it's another word for aging your arteries and your immune system," Dr. Roizen says.

Anything made with enriched flour is also on "the bad table." Seemingly healthy items like apple juice and yogurt often have additional sugar and salt.

Find out more about sugar, corn syrup, enriched flour and other items in the Food Hall of Shame.

Another ingredient to avoid is trans fat. These fats, which Dr. Oz says were originally invented as a substitute for candle wax, "stick together and they become solid at room temperature," Dr. Oz says. "There is no good oil that is solid at room temperature."

How do you know if a food has trans fat? In 2005 the U.S. government began requiring companies to list trans fat in nutritional information—so check your labels.
Jillian gets a full physical

Having survived Dr. Oz and Dr. Roizen's surprise house call, Jillian had a complete physical exam at Dr. Roizen's center at Northwestern Memorial Hospital in Chicago. She underwent a stress test and met with a dermatologist and an allergy specialist.

When Jillian gets her test results, she's shocked. "Your calendar age is 42.6, as you know," Dr. Roizen says. "But your Real Age is 56."

"When he said I was 56, that was harsh," Jillian says. "It's like someone walking up to you and asking you when the baby's due and you're not pregnant."
Jillian's 90-day plan

Now that Jillian knows just how bad her health is, Dr. Oz and Dr. Roizen are ready to start her on the 90-day Live Longer, Feel Younger Plan'.

First up for Jillian is a yoga lesson from Dr. Oz. "The key to yoga is a deep breath," he says. According to Dr. Oz, yoga helps improve strength and flexibility and can also help control blood pressure, and regulate breathing and heart rate.

Regular movement is crucial, so Jillian must ensure she walks for at least 30 minutes every day. "No matter what," Dr. Roizen says. "There's a hurricane? You walk 30 minutes a day. Earthquake—30 minutes a day. Tornado—30 minutes a day. Snowstorm—30 minutes a day."

Jillian meets with a personal trainer who helps her with stretching, weight lifting and crunches.

She even gets a lesson in healthy cooking because, as Dr. Roizen says, "food is medicine." First Dr. Roizen teaches her a recipe for whole-wheat pizza dough with tomato paste, which can help dramatically reduce cancer risk. The next recipe he shows Jillian is for salmon, which he says is rich in omega-3 fatty acids that can stabilize your heartbeat, lower blood pressure and help you to live longer. "I can't believe I like salmon," she says.
Jillian now

After 90 days on Dr. Oz and Dr. Roizen's plan, Jillian has lost 43 pounds! "That walk out here felt so much better than every Reuben I have ever eaten," Jillian says.

"I feel so much lighter and I feel so much healthier and I have ambition!" she says.