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Video: Stop yo-yo dieting and eat healthy

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    >>> we're counting down to memorial day -- with that all too familiar yo-yo die yetting.

    >> if you really want a new body to slip into that thong this summer, it's time to get serious, but losing weight too quickly can be more harmful than you think. carry glassman is a registered dietitian . .

    >> yo-yo dieting is described as the decrease and increase of a significant amount of body weight , generally ten pounds or more that occurs multiple times.

    >> you can tell why people like it. i get it. you want weight to come off fast. when people say eat right and all that stuff, it just seems like it takes so long. there are diets that say ten bounds in ten days and you really want that. can they be dangerous, those kind of diets.

    >> they absolutely can be. what happens is when you lose weight too fast and then gain it back, your hunger hormone increases. your fullness hormone decreases. essentially you become hungrier and less sachuated satiated. it's a dieter's nightmare. you also lose muscle. when you regain the weight you may regain back all fat. muscle burns ten times more than fat. essentially you're slowing your metabolism to a crawl.

    >> that's why i do it one ounce a year. nice and steady.

    >> i can't tell you how many people we've had on the joy fit club before they figured it out who said i dropped 60 and gained 80.

    >> there's aesthetic effects. loss of elasticity. it can be taxing on your arteries, skeletal system and stress your liver . woman that yo-yo diet have one-third less natural killer cells . that means their immune system is down. obviously we know we need those cells to fight infection and even fight materially stages of cancer cancer .

    >> there's no reason to yo-yo diet.

    >> you want it to come off quickly. how do you know if you're on that kind of a diet. i know you're supposed to eat healthy.

    >> what time frame , hoda?

    >> what sorts of diets are okay that take off weight quickly? are there some you can take it off fast and it's still okay?

    >> it depends on where you're starting from and currently eating. if you're eating too few calories and you're too deprive deprived, then you know it's not the right type of diet. you need to eat a balanced diet . you need to eat consistently throughout the day, which is what you're going to show you here.

    >> we have a few minutes.

    >> let's talk about that. a good breakfast. a lot of people skip breakfast because they're in a rush or basically they're not hungry. some people say i'm just not hungry in the morning.

    >> i'm not a morning person for food. i eat my yogurt with honey. lay off.

    >> she says that's not enough.

    >> you need a little more calories there.

    >> i do. i nosh through all of this.

    >> your body is basically in starvation mode throughout when you're sleeping at night. you need to get your metabolism going in the morning. it's essential to start with breakfast.

    >> the joy fit club a ladies all said they skipped breakfast. all the women at their heaviest missed that first meal.

    >> usually women that skip breakfast end up eating more calories at night. usually the wrong type of calories.

    >> this is right for breakfast.

    >> this whole day is going to be a basic day where you can still lose weight , but you're eating consistently throughout the day starting with breakfast. we've got blueberries, almonds, oatmeal, a hard boiled egg and your coffee. we've got a basic lunch. low fat tuna. in there instead of mayo we have not fat yogurt missioned with dijon mustard .

    >> is this comparable to having wheat bread ? the same in calories?

    >> similar to calories, exactly. it's just a whole wheat --

    >> we have about 30 seconds. a nice healthy dinner with salmon .

    >> a healthy dinner. we've got four different types of snacks. usually two snacks in a day. you'll notice here you can satisfy different cravings. popcorn with parmesan if you want salty. this the almond butter . if you want a sweet treat yogurt with a little bit of chocolate.

updated 4/14/2010 11:56:38 AM ET 2010-04-14T15:56:38

All you have to do is wheel your grocery cart into a checkout line to see the cautionary tales screaming at you from the tabloids:

Kirstie Alley regained the 70-plus pounds she lost on Jenny Craig. Maureen "Marcia Brady" McCormick got even heavier after she was on "Celebrity Fit Club." Oprah — well, we all know about her struggles. Janet Jackson, Kelly Clarkson ... the list goes on and on.

It makes you wonder: If these rich, powerful women, with their personal trainers and private chefs, can't win the weight war, what chance do I have?

It doesn't help that the statistics are grim: By some estimates, more than 80 percent of people who have lost weight regain all of it, or more, after two years. Researchers at the University of California at Los Angeles analyzed 31 long-term diet studies and found that about two-thirds of dieters regained more weight within four or five years than they initially lost.

Women who want to lose weight know these painful numbers all too well. "I've been on a roller coaster for the past two years," says Leigh Moyer, 31, of Philadelphia. In 2003, she lost 25 of her 155 pounds by diligently counting calories and logging daily sweat sessions at the gym. Four years later, busy with graduate school and her job at a software company, Leigh blew off her workouts and stopped monitoring her portions ... and shot up to 175. "It was so sad, so frustrating," she says. "I let myself down."

Along with the emotional toll is a physical one: Not only is the extra weight a health risk, but recent studies have linked the gain-lose-gain cycle to such potentially life-threatening conditions as high blood pressure, high cholesterol, diabetes, depression, heart disease, and cancer.

Understanding metabolic math
While small fluctuations on the scale are normal, the unhealthy behavior that experts refer to as "weight cycling" is not. Cycling is defined as a significant increase or decrease of body weight (generally 10 pounds or more) that occurs multiple times. 10 cities with the most cellulite

Experts believe a yo-yo pattern is often the result of a diet that's too restrictive, and a study reported in the journal Obesity backs that up: It found that people who followed a very low-calorie diet regained significantly more weight than those on a more forgiving plan. Desperate for quick results in a culture of instant gratification, "women try to lose weight on diets with too few calories," says Judith Beck, Ph.D., director of the Beck Institute of Cognitive Therapy and author of The Beck Diet Solution. "If you lose weight on 1,200 calories a day, the minute you go up to 1,300 is the minute you start gaining weight."

It happened to Tracy Srail. The 24-year-old from Atlanta has watched the scale bounce between 130 and 160 pounds for the past four years. "At one point, I was eating only one or two meals a day and chugging Rockstar energy drinks because I heard that caffeine increases your metabolism. I lost 15 pounds, but it didn't stick," she says. "I weigh about 155 now."

Even on a sensible diet, your body sheds pounds reluctantly. "One reason it's difficult to keep weight off is because there is a metabolic overcompensation for weight loss," says Gary Foster, Ph.D., director of the Center of Obesity Research and Education at Temple University in Philadelphia. "If you decrease your body mass by 10 percent, you would expect your metabolic rate to decrease by 10 percent, but it actually slows down more than that, by about 11 to 15 percent."

Why does your own metabolism thwart you? Simple, says Kelly Brownell, M.D., director of the Rudd Center for Food Policy and Obesity at Yale University: "The body may perceive dieting as a threat to its survival. It might not know the difference between Atkins and famine."

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What's more, says Brownell, who coined the term "yo-yo dieting" in the 1980s, weight cycling can actually change your physiology. So the more diets you've been on, the harder it becomes to lose the weight. A hunger hormone called ghrelin increases, and a fullness hormone called leptin decreases, so you feel hungrier and less satiated.

Born to rebound?
It's bad enough that your body fights you when you try to lose weight. Now there's compelling research to show that some people may be hardwired to yo-yo.

David Kessler, M.D., former U.S. Food and Drug Administration commissioner and author of "The End of Overeating," and his team of researchers at the University of California at San Francisco and Yale University, looked into the biology of weight cycling. They found that the reward circuits in the brains of people Kessler calls "conditioned hypereaters" were excessively activated simply by the smell of food and stayed that way until those people finished eating whatever was on the plate in front of them.

In other words, when you have overactive neural circuitry, resisting temptation is not a question of willpower alone. "This is a biological cause of conditioned hypereating. It's the first time we can say 'It's not your fault,' " Kessler says. He estimates that 50 percent of obese people and 30 percent of overweight people are conditioned hypereaters.

Evidence shows, however, that this reaction is partially learned, and that through conditioning, you can rewire your brain. After all, the yen to yo-yo is not just physical; emotional triggers play a huge role too. A study at Brown University found that dieters who ate in response to emotions such as stress or loneliness — as opposed to external events, like overdoing it at happy hour — were more likely to regain weight.

When Darcie Schmidt of Sioux Falls, South Dakota, was in her late twenties, she lost 75 pounds and then regained 120 over two years, largely because of emotional eating, she says. In her early thirties, she stuck to a strict diet-and-exercise regimen and shed 132 pounds. "I did not eat a single chip for 18 months," she says. But the stress of a divorce, a move, and a return to school knocked her off track, and she traded her three-mile, five-day-a-week runs for bags of those verboten chips — and regained 40 pounds. 13 cities with the worst skin

Beck sees women like Schmidt all the time, who do well for a while, only to fall off the wagon. The problem, she believes, is that they never learned the skills needed for long-term behavior change. "They haven't been taught how to motivate themselves every day," Beck says, "or how to respond to negative thoughts and recognize a mistake as a one-time thing."

A study of 200 overweight and obese people, published in the "Journal of Psychosomatic Research," supports the importance of a behavior-change approach. Along with other weight-loss techniques, one group received an additional hour of therapy, in which they learned to change their behavior; the other group did an extra hour of low-intensity exercise. After a year, those in the therapy group had maintained their weight loss, while the other group's members hadn't.

Risky bigness
While watching the numbers on the scale fluctuate wildly is a blues inducer and clothes-budget buster, there are far more compelling reasons to hold steady. For one, your metabolism might be affected — and not in the way you probably hoped.

"If you go on a very strict diet and gain the weight back quickly, you might lose a lot of muscle and regain a lot of fat," says Keith Ayoob, M.D., R.D., an associate professor at the Albert Einstein College of Medicine. "Then your metabolism operates on a slower idle, which means it's going to be harder to lose weight as time goes on."

The more times you yo-yo, the theory goes, the more fat your body gains in each rebound. Because muscle burns 10 times more calories than fat does, your metabolism eventually will slow to a crawl.

"Losing and gaining regularly takes a huge toll on your body," Ayoob says. Beyond aesthetics, such as a loss of skin elasticity, regaining weight burdens your arteries and skeletal system, and may stress the liver, which can become covered in fat.

Yo-yoing also does a number on your ticker: A study in "Clinical Cardiology" found that women who weight cycle five times or more during their lifetimes may be damaging their hearts in the process.

But perhaps most startling is the dangerous and lasting effect weight cycling has on the immune system. According to the first study of the long-term impacts of yo-yo dieting, women who repeatedly lost and gained weight had lower immune function, particularly lower counts of natural killer cells. "These cells are important for fending off infections and are also vital in fighting the early stages of cancer," says Cornelia Ulrich, M.D., of the Fred Hutchinson Cancer Research Center in Seattle. Low killer-cell activity is associated with higher rates of cancer. In her study of more than a hundred overweight but otherwise healthy women, those who had yo-yoed most frequently — five times or more — decreased their natural killer-cell activity by a third.

With so many drawbacks, you might wonder if you'd be better off just accepting your belly rolls. But the perils of being overweight still outweigh the risks of yo-yoing. So how do you quit the cycle for good? Despite what you read in the tabloids, it is possible.

Be realistic. "Make sure your diet is one you can stick with," says Anne Fletcher, R.D., author of "Thin for Life." No crash diets or fads that will be impossible to maintain. In fact, reconsider the whole notion of dieting as a temporary fix. Think of what you're doing as a permanent lifestyle shift: "This is how I eat now."

Be patient. Don't try to lose too much too soon. A healthy goal for slimming down, according to the National Institutes of Health, is to reduce your weight by approximately 10 percent over six months.

Be supported. Researchers have found that socializing with others who have successfully lost weight improves your odds of maintaining your own weight loss. So enlist a buddy or join a group.

Be analytical. Record your mood changes and hunger levels so you can learn to distinguish when you're eating for emotional reasons.

Be vigilant. "If you lose 30 pounds and then gain three, it's easy to think that's no big deal. But it's a slippery slope," Foster says — especially if you have a history of yo-yoing. Weigh yourself weekly, and have a clear plan of action ready if the scale swings too far.

Be flexible. "Switch eating plans if you get bored," says Michael Dansinger, M.D., weight-loss and nutrition advisor for "The Biggest Loser" and assistant professor at Tufts School of Medicine in Boston. Research indicates you're more likely to be successful.

Be active. Besides consuming a low-calorie, low-fat diet and being mindful about self-monitoring, you must exercise. This is the key strategy that keeps the 6,000 members of the National Weight Control Registry (an ongoing study of adults who have lost at least 30 pounds and kept it off for a year) from regaining weight. That doesn't mean you have to train for a marathon: Half an hour of walking every day is all you need to burn calories, build muscle, temper cravings, and increase "feel good" endorphin levels.

Be optimistic. "One of the most important tips for being a successful weight loser is not to let past failed attempts keep you from trying again," Dansinger says. "Every time you fail, you get more insight about what to do differently next time."

Outsmart the roller coaster
Three times in life when your weight is primed to spike:

College: Nearly a quarter of college freshmen gain 5 percent of their body weight during their first semester. And with late-night snacks and all-day cafeterias, the gain is likely to continue.

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Ditch the cafeteria tray, suggests Susan Alpers, Psy.D., author of "50 Ways to Soothe Yourself Without Food."

"Carrying the items individually will make you more likely to think about your food choices."

In love: Research repeatedly shows that living with or marrying a man can add to your waistline. "Women often adjust their eating habits to match those of men," Alpers says.

What to do: Remember that he needs (and burns) a lot more calories than you do, so don't match him bite for bite at every meal! Also, make dates to do something besides eat dinner, and agree to go to the gym as a couple (or do something else active together) as often as you both can.

In your 30s: Most women naturally start to lose muscle mass around this age, so their metabolism slows. Then, even if they're eating the same amount they always have, they don't burn off as much and the scale starts to creep up.

What to do: Pump some iron. You may not be able to stop losing muscle mass, but you can slow down the rate of loss. Fitting in two or three 20- to 30-minute strength-training sessions a week will help keep your metabolism fired up and the numbers on the scale from skyrocketing.

© 2012 Rodale Inc. All rights reserved.


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