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Find a new diet book to keep your goals on track

Posted: February 22, 2012 at 7:22 am

Diet books have long promised better health, smaller waists and lifetime sex appeal. But this year’s crop doesn’t just hope to help your weight-loss efforts. Most come with a secondary promise: brain health, balanced hormones, lower blood sugar, pain elimination.

Here’s a sample of what’s new:

The New Atkins for a New You Cookbook, by Colette Heimowitz (Touchstone; $19.99): The diet that shouts “Lose up to 15 pounds in 2 weeks!” now has a cookbook of 200 low-carb recipes you can make in 30 minutes or less. It hardly sounds like a diet if you get to eat Lime-Chili Grilled Wings or skirt steak with chimichurri sauce. Even its No-Bake Cheesecake doesn’t sound half bad.

Master Your Metabolism, by Jillian Michaels (Three Rivers Press; $15): The book by The Biggest Loser’s meanest trainer ever is now out in paperback. Michaels reaches out to yo-yo dieters with a plan that promises to tap into fat-burning hormones. She urges readers to dump “anti-nutrients” such as hydrogenated fats, refined grains, high-fructose corn syrup and artificial sweeteners in favor of lean meats, whole grains and fresh fruit and vegetables.

The Doctors: 5-Minute Health Fixes, by The Doctors, with Mariska van Aalst (Rodale; $17.99): The physicians known for their popular TV show offer quick advice — now in paperback — on a variety of health topics, including weight. Diet advice boils down to five tips: Cook your own food at home; get help if you’re an emotional eater; walk 30 minutes a day, five days a week; eat carbs, protein and fat at every meal; watch portion size.

The Women’s Health Diet, by Stephen Perrine, with Leah Flickinger and the editors of Women’s Health (Rodale; $25.99): If you can remake your body in “just 27 days” as the book cover promises, maybe your body wasn’t in such bad shape after all. Still, if you focus on healthy foods, get rid of sugary drinks and exercise as the book advocates, you’re likely to lose fat and build muscle — and that’s what we’re all after, right? Its authors spend a fair amount of space going over the “Secrets of the Slim” — eating fresh produce, never skipping breakfast, learning to love salad. It provides plenty of resources to help you navigate supermarket aisles and restaurant menus.

The Men’s Health Diet, by Stephen Perrine, with Adam Bornstein, Heather Hurlock and the editors of Men’s Health: This version for men is much like its women’s counterpart, save for language that’s more likely to appeal to guys. For example, “Secrets of the Slim” becomes “Rules of the Ripped.” Its list of best foods for men are much like those of women, but organized differently and geared to men’s tastes.

The Diet Detective’s All-American Diet, by Charles Platkin (Rodale; $25.99): The book’s cover refers to Platkin as a Dr., but he’s a Ph.D., not an M.D. This public-health advocate has put forth a book that would only appeal to people who don’t want to cook and have no interest in learning how. It focuses on exercise in one short chapter, then lays out a plan for building meals out of convenience foods such as Pop-Tarts (no kidding), instant oatmeal, Jimmy Dean sausage biscuits and Stouffer’s lasagna. Not to completely diss the plan; it includes hundreds of convenience foods, including some that are lower in sodium, fat and-or sugar and will surely help you control how much you eat.

Six Weeks to Skinny Jeans, by Amy Cotta (Rodale, $24.99): The author’s picture-perfect derriere on the cover will surely catch the attention of any woman who’s looked backward at a three-way mirror and shuddered. Cotta, a Nashville-area fitness trainer, provides before and after photos of her clients — real women with lives, jobs, children and imperfect bodies — who lost a jeans size or two in six weeks. Her plan will have you watching your carbs, relying on low-glycemic foods, working out and keeping a diet-exercise log.

 

The Houston Chronicle

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Find a new diet book to keep your goals on track

Creative Bioscience Named Top-Selling Natural Diet Formula Company by SPINS Topline Report

Posted: February 22, 2012 at 7:22 am

MURRAY, Utah, Feb. 21, 2012 /PRNewswire/ -- Creative Bioscience announced today it has been named the #1 top-selling maker of all-natural diet formulas in the 2011 SPINS Topline report, skyrocketing to a 31 percent market share in the company's first-ever appearance on the report. In addition to ranking Number One in sales overall, Creative Bioscience's hCG 1234™ is the top selling product in the category for 2011, surpassing well-known brands like Irwin Naturals and Nature's Way to take the top spot.

As the only comprehensive source of scanner-based sales data for the natural products supermarket channel, the SPINS Topline report tracks product sales and growth rates by brand in a variety of categories in the natural products industry, including diet supplements.

"It's been our goal from the beginning to become the world's leading supplier of natural, effective diet and weight loss supplements, and we are thrilled to see that it looks like we're well on our way," said Ike Blackmon, Executive Director at Creative Bioscience. "The fact that we've outsold brands with a 15 year history in the business is quite a testament to the immediate and remarkable results our customers have seen."

Creative Bioscience's newly reformulated hCG1234™ offers dieters a powerful, effective, amino-based blend clinically supported to enhance diet results. This proprietary combination of amino acids and herbal extracts works to block fat, boost fat metabolism and provide essential nutrition when used in conjunction with Dr. Simeons' Protocol of allowed foods in proper portions—an effective weight loss program backed by a 50-year history of helping people lose weight and improve their overall health. Designed for dynamic, rapid weight loss, Creative Bioscience's premium American-made hCG1234™ has helped many dieters lose an average of 1-2 pounds per day, without the need for vigorous exercise and with more calorie and food choices than other products provide.

Blackmon says the results of the SPINS report not only prove that Creative Bioscience's advanced formulations help customers achieve their weight loss goals with safe, natural products, but also that the company itself is changing the way the diet industry works by bringing a refreshing new level of transparency and personalized customer attention into the equation.

"We have long believed that the diet industry as a whole needed a wake-up call. For too long, most companies have gotten away with hiding behind ambiguous claims and giving customers virtually no way to contact the company with questions, or if they need assistance with their diet program," Blackmon said. "Smart dieters today demand better service and more accountability. We're one of the only supplement makers to offer that personal touch by providing free, 24/7 access to our trained diet support specialists who can help you overcome plateaus, provide encouragement or offer sound, realistic advice."

In addition to the popular hCG 1234™, Creative Bioscience offers a wide range of products, including many that feature the Dr. Oz recommended Raspberry Ketones. The diet giant's supplement portfolio includes tailored solutions to meet different weight loss styles: hCG Zero Liquid™, Diet Revive™, hCG Energy™, hCG Cleanse™, eAC 1234™ for energy and appetite control and rCC 1234™ for rapid colon cleanse each fill a specific dieting need. Its line of African Mango products— which Dr. Oz called a "miracle in your medicine cabinet that can help you lose 10 pounds"—include African Mango Lean™, African Mango 1200™ and African Mango Cleanse™ to enhance weight loss by naturally increasing metabolism and suppressing appetite. All Creative Bioscience products are manufactured in FDA-inspected and GMP-approved labs in the United States.

For more information about Creative Bioscience's complete line of natural, herbal diet supplements and to find other store locations, visit http://www.creativebioscience.com. 

Product statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure or prevent any disease.

About Creative Bioscience:? Creative Bioscience is a dynamic weight loss supplement company dedicated to innovation, research, and professional support. The company uses key botanicals and natural ingredients in its line of herbal supplements for diet support, and its products are manufactured in FDA inspected and GMP approved facilities using precise, technologically advanced equipment. It produces several proprietary, all-natural diet support supplements, including Raspberry Ketones and the plant Irvingia gabonensis, commonly known as African Mango. Creative Bioscience's complete line of diet aids offers tailored weight-loss solutions designed to meet the needs of anyone who is ready to lose weight, including those looking to cleanse their system of toxins.??Creative Bioscience offers 24/7 personalized diet support by trained specialists for customers, offering guidance on safe weight loss and tips on healthy living. For more information, visit http://www.creativebioscience.com.

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Creative Bioscience Named Top-Selling Natural Diet Formula Company by SPINS Topline Report

No need to panic over diet soda heart risks

Posted: February 22, 2012 at 7:22 am

A new study has found that drinking diet soda every day is linked to higher rates of heart attack and stroke.

According to researchers from the University of Miami Miller School of Medicine, older adults who drank diet soda every day were 44 percent more likely to suffer a heart attack or stroke, compared with 22 percent of people who rarely or never drank diet soda but still had a heart attack or stroke.

But before any panic sets in, I want to add that the researchers clarified the study did not prove that diet soda alone was to blame.

Rather, it appears that people who drink diet soda every day are more likely to engage in other unhealthy habits – meaning the soda alone may not be the cause of heart attacks or strokes.

Among these other factors, the researchers said daily diet-soda drinkers tended to be heavier and more often had heart risk factors such as high blood pressure, diabetes and unhealthy cholesterol levels.

In other words – while I would never recommend drinking diet soda daily as a good idea – if you’re counting calories, don’t be afraid to reach for diet instead of regular soda.  It’s highly unlikely you’ll suffer any heart problems as a result.

Send me your health questions on Facebook and Twitter.  And remember to join me for my weekly health live chat every Wednesday from 2-3 pm ET.

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No need to panic over diet soda heart risks

Snapple Officially Launches Diet Half ‘n Half Lemonade Iced Tea

Posted: February 22, 2012 at 7:22 am

PLANO, Texas--(BUSINESS WIRE)--

Snapple today officially launches Diet Half ‘n Half Lemonade Iced Tea, joining the ranks of such great combinations as the spork, labradoodle and the keyboard guitar. The half lemonade, half iced tea blend is made from healthy green tea, tasty black tea and has only ten calories per 16oz bottle. While some may argue that one half may be better than the other, Snapple has brought the two together to create a low calorie option of this perfect combination.

“Some combinations are too perfect to pass up,” said Regan Ebert, vice president of marketing for Snapple. “Snapple is always looking to make the Best Stuff even better and the new Diet Half ‘n Half offers our fans a tasty low calorie combination of two classic flavors that is sure to please, whichever side you’re rooting for.”

To settle the score between Lemonade and Iced Tea lovers everywhere, Snapple is challenging fans to battle it out and vote for which side reigns supreme as the blend’s better half. Fans can vote for their favorite flavor on Twitter by using the #Lemonade@Snapple and #Tea@Snapple hashtags, as seen in the new drink’s advertising spot; via Snapple’s Facebook page; and on Snapple.com.

By participating, fans can enter for a chance to win daily Snapple prizes. A few lucky winners will also receive $1,000 prizes, half for them to keep and half for their charity of choice. For additional details, go to Snapple.com. Fans can also visit Snapple on Facebook for one of the 250,000 coupons for $1.00 off of a Snapple 6-pack that the brand will give away in celebration of the new beverage.

Snapple Diet Half ‘n Half is now available at participating retailers nationwide in individual 16-ounce bottles for $1.39 and 6-packs for $5.99. It is also available in 32oz, 64oz and 16oz 12-Packs. For full details and a list of participating retailers, visit http://www.Snapple.com.

About Snapple

Snapple, a brand of Dr Pepper Snapple Group (NYSE: DPS - News), is a leader in great-tasting premium beverages. Founded in 1972 by three childhood friends, Snapple got its start in Greenwich Village, New York, and is now available throughout the United States and numerous countries worldwide. Snapple prides itself on developing, producing and marketing a wide variety of premium beverages, including ready-to-drink iced teas, juice drinks, 100% juices and water. Known for its down-to-earth approach to marketing, Snapple continues to delight fans across the world. DPS is a leading producer of flavored soft drinks, marketing Snapple and 50-plus other brands across North America and the Caribbean. For more information on Snapple, visit http://www.snapple.com or http://www.drpeppersnapple.com.

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Snapple Officially Launches Diet Half ‘n Half Lemonade Iced Tea

Daily diet soda may increase risk of heart attack, stroke

Posted: February 22, 2012 at 7:22 am

Diet soda may benefit the waistline, but people who drink it every day may have a heightened risk of heart attack and stroke, according to a new U.S. study.

Although the researchers, whose work appeared in the Journal of General Internal Medicine, found that older adults who drank diet soda every day were 44 percent more likely to suffer a heart attack, their research did not prove that the sugar-free drinks alone were to blame.

"What we saw was an association. These people tend to have more unhealthy habits."

- Hannah Gardener, of the University of Miami Miller School of Medicine

There may be other things about diet-soda lovers that explain the connection, said lead researcher Hannah Gardener, of the University of Miami Miller School of Medicine, and her team.

"What we saw was an association. These people may tend to have more unhealthy habits," she said.

She and her colleagues tried to account for that, noting that daily diet-soda drinkers did tend to be heavier and more often have heart risk factors such as high blood pressure, diabetes and unhealthy cholesterol levels.

Gardener and her team studied 2,564 New York City adults who were 69 years or older at the study's start. Over the next decade, 591 men and women had a heart attack, stroke or died of cardiovascular causes -- including 31 percent of the 163 people who drank a diet soda daily at the start of the study.

Overall, daily consumption of diet soda was linked to a 44-percent higher chance of heart attack or stroke, compared with 22 percent for people who rarely or never drank diet soda but had a heart attack or stroke.

Gardener said that if diet soda itself contributes to health risks, it's not clear how.

Some research in rats suggests that artificial sweeteners can end up boosting food intake and weight, but whether these results translate to humans is unknown.

"I don't think people should change their behavior based on this study," Gardener said, noting that further study is needed to confirm a connection between diet soda and cardiovascular trouble.

 

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Daily diet soda may increase risk of heart attack, stroke

Diet drug Qnexa will get a second look

Posted: February 22, 2012 at 7:22 am

Diet drugs have failed to impress government health regulators in recent years with several prospective medications being denied approval and another drug taken off the market. Hopes for the first new diet pill in about 13 years now rest with a meeting Wednesday in Washington, D.C., to discuss Qnexa.

An advisory committee reporting to the Food and Drug Administration will, for the second time, hear evidence for or against the approval of Qnexa, which is a combination of two existing drugs -- the anticonvulsant topirimate and the diet drug phentermine -- that promote weight loss. The medication, made by the Mountain View, Calif.-based Vivus, first came before the FDA advisory committee in July 2010, which voted to deny approval. The FDA subsequently denied approval in October 2010, citing potential safety problems.

However, FDA officials left the door open for Qnexa, asking Vivus to provide additional data on whether the medication can cause birth defects and what the risk of birth defects might be. The agency has also requested data on whether the slight increase in heart rate that is linked to the drug increases the risk of cardiovascular events, such as heart attack and stroke.

There are fewer questions about Qnexa's ability to promote weight loss. A two-year study of 4,323 people showed an average weight loss of at least 10% of total body weight and  improvements in blood pressure.

Vivus officials have maintained a positive front about the drug's eventual approval. But documents filed in advance of Wednesday's meeting suggest some hard questions await Vivus officials. The FDA remains concerned with a potential increased risk of cleft palate in babies born to women who become pregnant while taking the medication. A key issue is whether Vivus can persuade the FDA that the drug will not be prescribed haphazardly to women who could become pregnant. Questions also remain regarding potential heart risks for adults taking the drug.

More is at stake than just Qnexa. The FDA has rejected applications for two other diet medications in the past two years (both of those drugs will also be resubmitted with additional follow-up data), and health professionals who work in the obesity field are growing impatient with the FDA's demands.

The Obesity Society, the Obesity Action Coalition and other medical organizations have been working with the agency for several years to discuss expanding treatment options for patients with obesity. Some obesity experts have said they feel the FDA is holding weight-loss drugs to a higher standard compared with medications that treat other conditions.

But obesity has severe health ramifications, noted James Zervios, a spokesman for the Obesity Action Coalition.

"There just aren't a lot of tools in the tool box when you're treating obesity," Zervios said. "We need other options for people."

While diet and exercise is useful for people who require only a small weight loss, and surgery is available for people with severe obesity, there are fewer options for the "in between" overweight individual, Zervios said. Qnexa targets people with a body mass index of 30 or above or a BMI of 27 or above for people who also have weight-related health problems, such as diabetes or sleep apnea. A BMI of 25 to 29 indicates overweight and 30 or greater is considered obese.

FDA officials are sympathetic to the need, Zervios said. But the potential for Qnexa to cause birth defects appears to be of great concern to the agency.

"The fear is that this drug will be used by all," he said. "Our stance is there needs to be strict guidelines in place so the right individuals are gaining access to it. It's not for people who want to lose five or 10 pounds."

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Diet drug Qnexa will get a second look

Study says overweight Americans may risk kidney damage when attempting weight loss

Posted: February 22, 2012 at 7:22 am

Public release date: 21-Feb-2012
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Contact: Kevin Ziegler
zieglek2@ccf.org
216-636-5876
Cleveland Clinic

Tuesday, February 21, 2012, Cleveland: With 1 in 5 overweight Americans suffering from chronic kidney disease, Cleveland Clinic researchers analyzed the nutritional and lifestyle habits of overweight adults, finding that their methods included diets and diet pills that may cause further kidney damage.

The study findings, published online this month in the International Journal of Obesity, came from an analysis of food choices and lifestyle habits of 10,971 overweight adults taken from the National Health and Nutrition Examination Survey (NHANES), a federally-administered assessment of the overall health and nutritional status of Americans.

Of the overweight and obese patients with kidney disease included in the survey, 50 percent reported that they had attempted to lose weight in the past year. The survey showed that, on average, obese Americans with kidney disease consume protein in amounts that are above the recommended levels prescribed by the National Kidney Foundation for chronic kidney disease patients.

The typical American diet each day includes approximately 1.2g of protein per kilogram of body weight. Patients with CKD are advised to consume 0.6g to 0.75g protein per kilogram of body weight each day and popular high-protein diets may call for up to 1.9g per kilogram of body weight.

"People who are overweight or obese are at higher risk for chronic kidney disease and there is a great need to define what the appropriate lifestyle changes and weight loss modalities are for protecting kidney function," said Sankar Navaneethan, M.D., a nephrologist in the Glickman Urological and Kidney Institute at Cleveland Clinic and lead author of the study. "Rather than using fad diets or diet pills, overweight and obese people with kidney disease may adopt a weight loss plan that incorporates a low-protein, low-calorie diet, regular physical activity and close follow-up by their physicians."

The survey asked patients whether they participated in regimens that included diet or exercise or both, but the specific program, such as a high-protein diet or low-protein diet, was not named. The survey also found that eight percent of weight loss seekers with CKD used medications as part of their weight loss regimen. Certain weight loss methods, especially high-protein diets and weight loss medications are not recommended in people with kidney disease as they may lead to further kidney damage.

The authors recommend further studies designed to identify safe treatment strategies for weight loss with regards to protecting kidney function.

According to the Centers for Disease Control and Prevention, more than 10 percent of adults aged 20 or older in the U.S., or more than 20 million people, have chronic kidney disease (CKD), a condition that describes the progressive worsening of kidney function. It is often found in patients who have diabetes or hypertension, and can exist without symptoms until it progresses to severe levels. When CKD progresses to end-stage renal disease, patients typically require treatment through dialysis or transplantation. The prevalence of the disease is rapidly growing as is the cost burden. Medicare costs in the U.S. for the care of patients with end-stage renal disease has risen from $12.2 billion in 2000 to $20.8 billion in 2007.

###

About Cleveland Clinic

Cleveland Clinic is a nonprofit multispecialty academic medical center that integrates clinical and hospital care with research and education. Located in Cleveland, Ohio, it was founded in 1921 by four renowned physicians with a vision of providing outstanding patient care based upon the principles of cooperation, compassion and innovation. Cleveland Clinic has pioneered many medical breakthroughs, including coronary artery bypass surgery and the first face transplant in the United States. U.S.News & World Report consistently names Cleveland Clinic as one of the nation's best hospitals in its annual "America's Best Hospitals" survey. About 2,800 full-time salaried physicians and researchers and 11,000 nurses represent 120 medical specialties and subspecialties. Cleveland Clinic Health System includes a main campus near downtown Cleveland, eight community hospitals and 18 Family Health Centers in Northeast Ohio, Cleveland Clinic Florida, the Lou Ruvo Center for Brain Health in Las Vegas, Cleveland Clinic Canada, and opening in 2013, Cleveland Clinic Abu Dhabi. In 2010, there were 4 million visits throughout the Cleveland Clinic health system and 167,000 hospital admissions. Patients came for treatment from every state and from more than 100 countries. Visit us at http://www.clevelandclinic.org. Follow us at http://www.twitter.com/ClevelandClinic.

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Study says overweight Americans may risk kidney damage when attempting weight loss

Weight Loss Pill Qnexa in FDA's Hands: Will it be Approved?

Posted: February 22, 2012 at 7:22 am

Will there soon be a new weight loss pill for people who struggle to lose weight on the path to better health? Qnexa is in the hands of an FDA panel once again because the drug's maker, Vivus Inc., provided new safety information about the drug.

The weight loss pill combines two currently approved drugs: phentermine and topiramate. Phentermine is the safer part of the wildly popular "phen-phen," which is still sometimes used for weight loss. However, topiramate is used for seizures and migraines, which does list troubling side effects.

The problem is, people want a pill to aid in weight loss to be a quick fix, and it seems clear that there is no magic weight loss pill out there. They seem to have way too many side effects, or they are not effective. The last time the FDA panel voted on this drug, it was 10 to six against approval. Perhaps things will change, but even then this isn't going to be a magic pill. Ultimately, there will be risks to be weighed against the health benefits.

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Weight Loss Pill Qnexa in FDA's Hands: Will it be Approved?

The Big Squeeze: Calif. Weight Loss Clinics Under Investigation

Posted: February 22, 2012 at 7:22 am

A group of weight-loss clinics in Southern California is under fire for an aggressive advertising campaign and the death of five patients.

The 1-800-GET-THIN marketing campaign and its affiliated surgical centers are being investigated by local, state and federal agencies, including Congress.

If you travel Los Angeles freeways you've undoubtedly seen the billboards advertising the weight loss Lap-Band device. The group also has a catching ad jingle, which is even available as a phone ringtone.

The ubiquitous ad campaign and the surgeons affiliated with it are under intense scrutiny. At least three wrongful death lawsuits have been filed, and the Los Angeles County Coroner is investigating one of the deaths. And according to a spokesman at the California Department of Insurance, the agency has initiated an investigation into allegations of insurance fraud.

 

Mona Misra is a bariatric surgeon at L.A.'s Cedars Sinai Hospital. She says she's glad regulators are looking into the practices, but she says many of her patients are getting the wrong message.

"For a lot of patients, the band might be the perfect operation for them and we don't want them to be afraid of it because they think that it is such a dangerous operation," Misra says.

The Lap-Band is a small, surgically-implanted silicone ring that, when inflated, restricts part of the stomach so only a small amount of food can get in.

Democratic Congressman Henry Waxman, whose district covers much of Los Angeles, says he wants more regulatory oversight of the Lap-Band.

"Here you have an outfit that is putting up billboards urging people to get this Lap-Band product, and they're not giving people all the information that they are entitled to have about the risk, cautions and possible side effects," Waxman says.

The Food and Drug Administration recently sent a warning letter to the 1-800-GET-THIN marketers ordering them to include more prominent safety warnings. The group's website now has disclaimers, but an FDA spokeswoman said the agency could not comment whether the marketers had fully complied with the warning. She would only say that firms are expected to correct violations, and failure to do so may result in enforcement action.

Those new disclaimers are too little and too late for Alexander Robertson, a lawyer who has brought five different lawsuits, including two wrongful death claims, against the 1-800-GET-THIN marketers and its affiliated surgeons.

"They really preyed on a very susceptible group of the population that obviously would like to look like those skinny beautiful people on the billboards and were told it this is a safe one hour procedure," Robertson says. "You come in and get it done and you are going to be thin right away."

A lawyer for the surgical centers and others affiliated with 1-800-GET-THIN declined to be interviewed. But he did send a written statement denying all allegations against his clients and touted "the success we have achieved in improving the quality of life of thousands of patients."

Meanwhile for years Allergan, the manufacturer of the Lap-Band, continued selling the device to surgeons affiliated with the 1-800-GET-THIN campaign. Earlier this month the company reversed that stance and announced that they would no longer sell to Top Surgeons, Inc, which is affiliated with the controversial ad campaign. A spokeswoman for the company would not elaborate why the decision to halt sales was made.

Scott Cunneen the head of Bariatric Surgery at Cedars Sinai, applauds the move. He and 29 other doctors recently sent a letter to members of congress denouncing the approach to anti-obesity treatment used by the 1-800-GET-THIN surgical centers. Cuneen says he fears Congress will crack down on the use of the Lap-Band instead of monitoring surgeons who he says, improperly use it.

"We hope that Congress regulates the practices and the facilities in such a way that the safety is maintained and doesn't condemn the whole category of therapy," says Cunneen, who insists that surgery, when performed properly and marketed truthfully, is the best and most effective way to combat obesity.

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The Big Squeeze: Calif. Weight Loss Clinics Under Investigation

Weight loss not so simple as previously thought?

Posted: February 22, 2012 at 7:22 am

Weight loss is not as simple as eating less and exercising more, and for those who struggle to shed the pounds, a new equation may offer some help.

Scientists are now using mathematics to better understand the physiology of weight loss, and more accurately predict just how much weight someone will lose on a specific diet and exercise regime, researchers said here today at the American Association for the Advancement of Science's annual meeting.

In the past, physicians assumed that eating 500 fewer calories per day would lead to about a pound of weight loss per week, said Kevin Hall, a researcher at the National Institutes of Health in Bethesda, Md.

But it turns out, this rule of thumb is wrong, Hall said, because it doesn't take into account that metabolism slows down during dieting. Thus, predictions that used this rule were overly optimistic, Hall said.  

Hall and colleagues have developed a model that takes into account an individual's age, height, weight and physical activity level to better predict how much weight they might lose on a diet and exercise plan. Currently, the model is intended only for use by physicians and researchers scientists, Hall said.

Hall's research has also come up with a more realistic rule of thumb for weight loss. The new rule says you need to cut 10 calories per day from your diet for every pound you want to lose over a three-year period. So cutting 100 calories per day will lead to a 10-pound weight loss over three years, Hall said. Half of this weight loss would occur over the first year. To lose more weight after the three-year period, you'd have to cut more calories, Hall said.

The model may help policy makers understand the impact of public health measures on the obesity epidemic. For instance, one estimate of the effect of a 20 percent tax on sugar-sweetened beverages predicted that such a tax would lead to a 50 percent reduction in the number of overweight people in the United States in a five-year period. Hall 's new equation predicts about a 5 percent reduction in the percentage of overweight people in five years, Hall said.

 

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Weight loss not so simple as previously thought?


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