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Andrea Janus, CTVNews.ca Published Sunday, Aug. 19, 2012 7:30AM EDT

Dieters who have trouble sticking with a weight-loss plan take heart: a new study suggests that so-called yo-yo dieting appears to have little effect on the ability to lose weight over the long term.

Experts believe that repeated cycles of weight loss and gain, which is also known as weight cycling, affects anywhere between 10 and 40 per cent of the population in Western countries.

But it has long been up for debate whether that pattern has a negative impact on metabolism and the long-term ability to shed pounds.

The new study was conducted by researchers at the Fred Hutchinson Cancer Research Center in Seattle. They culled data from 439 women who were classified as overweight or obese, sedentary, and between the ages of 50 and 75.

Of the participants, 18 per cent met the criteria for severe weight cycling (they reported losing 20 or more pounds on three or more occasions) while 24 per cent met the criteria for moderate weight cycling (losing 10 or more pounds on three or more occasions).

All participants had been randomly assigned to one of four groups for a year-long weight-loss program designed to help them shed 10 per cent of their starting weight: reduced-calorie diet only, exercise only, reduced-calorie diet plus exercise, and a control group that included neither diet nor exercise.

After the year, the subjects in the diet-only and diet and exercise groups met the weight-loss goal. And when the researchers compared the weight cyclers to the non-cyclers, they found no difference between the two groups in terms of weight loss, body-fat percentage and lean muscle mass gained or lost.

They also found that the cyclers and non-cyclers were equally successful at sticking with the year-long program. And health markers such as blood pressure and insulin sensitivity were not significantly different between the two groups.

The study is published in the journal Metabolism.

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Long-term weight loss not affected by yo-yo dieting: study

Great Yarmouth's Young Slimmer of the Year Savannah Sharpe.

JOE WILKES Saturday, August 18, 2012 6:30 AM

A Gorleston girl was inspired to lose weight by the thought of her school prom.

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"I hope shell inspire other young people in Great Yarmouth."

Claire Rawlinson.

And as a result, 16-year-old Savannah Sharpe, from the Bells Road area, shed one and a half stone to be named Great Yarmouth Slimming Clubs Young Slimmer of the Year and fit into the dress for her end of year prom - all the while studying for her GCSEs.

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Gorleston super slimmer fits in to dream dress in time for prom

Diet news is never just plain good. Good would be something like "Eating chocolate causes you to lose weight and gain lean muscle mass, study finds."

The latest, out of Fred Hutchinson Cancer Research Center, is not like that.

Yo-yo dieting, researchers have found, actually doesn't change your metabolism and make it harder to lose weight in future efforts, as widely believed. So just because you've lost and gained, lost and gained, lost and gained, you now have no excuses. Do it again. And likely, again.

Dr. Anne McTiernan, of The Hutch's public health-sciences division, the senior author of the study published online by the journal Metabolism, sees the results as a half-full kind of thing.

"A history of unsuccessful weight loss should not dissuade an individual from future attempts to shed pounds or diminish the role of a healthy diet and regular physical activity in successful weight management," McTiernan said.

The study was designed for a slow, steady and reasonable amount of weight loss -- 10 percent of body weight within six months and maintenance for the next six -- with daily calories of 1,200 to 2,000, calculated by each woman's beginning body weight.

Earlier studies have suggested that repetitive weight loss-regain cycles may increase a dieter's preference for dietary fat, perhaps because of changes in metabolic rate, immune function and body composition, the authors noted. But few studies have actually examined this notion, which suggests that somehow dieting causes a person's body to become more efficient at holding onto fat, they said.

For the study, McTiernan and her colleagues enrolled 439 overweight to obese, sedentary Seattle-area postmenopausal women, ages 50 to 75.

Obesity, the researchers said, is a known risk factor for many cancers, as well as for heart disease and diabetes, and with two-thirds of the U.S. population overweight or obese, it's a worry for those in public health.

And for the nearly half of American women estimated to be currently dieting, any help understanding what's going on with their recalcitrant fat may be very welcome.

Read the original here:
Yo-yo Dieting Doesn't Prevent Future Weight Loss: Study

Schemes & Rip Offs: Fake Check Warning Schemes & Rip Offs: Fake Check Warning

Selling your stuff online is an easy way to get rid of things you don't want and make some extra cash. But it's also the place scam artists target. The Federal Trade Commission says it received more

Selling your stuff online is an easy way to get rid of things you don't want and make some extra cash. But it's also the place scam artists target. The Federal Trade Commission says it received more than 43,000 complaints about check scams just last year.

One person was killed in a head-on crash in northwestern Minnesota Thursday night.The Polk County Sheriff's office says it happened on County Road 11 east of Crookston, Minnesota just after 9:30 p.m.

A Gentilly man was killed Wednesday night in a head-on collision about a mile east of Crookston on PolkCounty Highway 11.

(AP) - Minnesota employers added 6,800 jobs in July, the second month in a row that the state gained jobs. The Department of Employment and Economic Development released the July job numbers on Thursday.

The Department of Employment and Economic Development released the July job numbers on Thursday. While jobs were added, the state's unemployment rate climbed two-tenths of a percent to 5.8 percent, due to seasonal adjustments.

The North Dakota Department of Health reports 13 new human cases of West Nile virus since reporting the first case last week, bringing the statewide total to 14. This compares to only four cases confirmed

The North Dakota Department of Health reports 13 new human cases of West Nile virus since reporting the first case last week, bringing the statewide total to 14. This compares to only four cases confirmed

All you parents out there are likely getting ready to send you kids back to school, but that involves more than just buying supplies. You'll also want to get your kids' eyes checked out because a trip

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3 Simple Rules for Weight Loss

Editor's Choice Main Category: Obesity / Weight Loss / Fitness Article Date: 16 Aug 2012 - 10:00 PDT

Current ratings for: Yo-Yo Dieting Does Not Affect Future Weight Loss Outcomes

The study, conducted by researchers at Fred Hutchinson Cancer Research Center, is published online in the journal Metabolism.

Anne McTiernan, M.D., Ph.D., a member of the Hutchinson Center's Public Health Sciences Division, explained: "A history of unsuccessful weight loss should not dissuade an individual from future attempts to shed pounds or diminish the role of a healthy diet and regular physical activity in successful weight management."

At present, around two-thirds of people in the United States are overweight or obese, and around 50% of women in the country are currently trying to lose weight. Obesity is a known risk factor for cardiovascular disease and diabetes and also for many types of cancer. It is believed that the association between body fat and the production of certain hormones and inflammatory markers contribute to the increase risk of developing cancer.

McTiernan said:

For the study the team examined data from 439 women in the Seattle area, who were either overweight or obese and led sedentary lifestyles. The participants, aged 50-75, were randomly assigned to 1 of 4 groups:

The researchers set out to determine if women with a moderate or severe weight cycling found it hard to lose weight than women who had never yo-yo dieted.

According to the researchers:

At the end of the study, the team found no significant differences between severe weight cyclers and those who didn't with regard to the ability to successfully take part in diet and/or exercise programs.

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Yo-Yo Dieting Does Not Affect Future Weight Loss Outcomes

OK, so you cant lose weight just by sleeping if you eat doughnuts five times a day and never leave your couch. But, it turns out, there may be a correlation between your appetite and how much and how well you sleep.

Its a captivating idea, and it could have repercussions for increasingly sedentary, stress-filled lifestyles. People who sleep less may tend to eat more.

A recent study funded by the National Institutes of Health, Minnesota Obesity Center and the Mayo Clinic found that people who were sleep deprived ate more than 500 additional calories per day.

Previous studies have also found that a lack of sleep is linked with weight gain and obesity, but more are needed to confirm the results. The idea is that less sleep and sleep disruption can affect peoples hormones specifically their leptin and ghrelin levels both stimulating their appetite and making them not as satisfied after they eat.

Dr. Michael Breus, a nationally recognized sleep expert, traveled around Maine early this summer and talked about the difference more sleep can have on a successful versus a failed diet.

Sleep experts suggest turning cellphones and computers off an hour before going to bed, keeping naps short during the day, maintaining a comfortable temperature in the bedroom, sticking to a similar routine during the week and on weekends and exercising regularly (but not right before bed) as ways to improve your sleep.

Whether it helps you lose weight or not, its good to aim for a restful sleep. Just do your best to not dream about cake.

Link:
Want to lose weight? Sleep more

Originally published August 15, 2012 at 10:55 PM | Page modified August 15, 2012 at 11:42 PM

Diet news is never just plain good.Good would be something like "Eating chocolate causes you to lose weight and gain lean muscle mass, study finds."

The latest, out of Fred Hutchinson Cancer Research Center, is not like that.

Yo-yo dieting, researchers have found, actually doesn't change your metabolism and make it harder to lose weight in future efforts, as widely believed. So just because you've lost and gained, lost and gained, lost and gained, you now have no excuses. Do it again. And likely, again.

Dr. Anne McTiernan, of The Hutch's public health-sciences division, the senior author of the study published online by the journal Metabolism, sees the results as a half-full kind of thing.

"A history of unsuccessful weight loss should not dissuade an individual from future attempts to shed pounds or diminish the role of a healthy diet and regular physical activity in successful weight management," McTiernan said.

The study was designed for a slow, steady and reasonable amount of weight loss 10 percent of body weight within six months and maintenance for the next six with daily calories of 1,200 to 2,000, calculated by each woman's beginning body weight.

Earlier studies have suggested that repetitive weight loss-regain cycles may increase a dieter's preference for dietary fat, perhaps because of changes in metabolic rate, immune function and body composition, the authors noted. But few studies have actually examined this notion, which suggests that somehow dieting causes a person's body to become more efficient at holding onto fat, they said.

For the study, McTiernan and her colleagues enrolled 439 overweight to obese, sedentary Seattle-area postmenopausal women, ages 50 to 75.

Obesity, the researchers said, is a known risk factor for many cancers, as well as for heart disease and diabetes, and with two-thirds of the U.S. population overweight or obese, it's a worry for those in public health.

See more here:
Mythbuster: Yo-yo dieting no deterrent to future weight loss, study reveals

Newswise SEATTLE Yo-yo dieting the repetitive loss and regain of body weight, also called weight cycling is prevalent in the Western world, affecting an estimated 10 percent to 40 percent of the population. The degree to which weight cycling may impact metabolism or thwart a persons ability to lose weight in the long run has been unclear until now.

A new study by researchers at Fred Hutchinson Cancer Research Center, published online in the journal Metabolism, for the first time has shown that a history of yo-yo dieting does not negatively affect metabolism or the ability to lose weight long term.

A history of unsuccessful weight loss should not dissuade an individual from future attempts to shed pounds or diminish the role of a healthy diet and regular physical activity in successful weight management, said the studys senior author Anne McTiernan, M.D., Ph.D., a member of the Hutchinson Centers Public Health Sciences Division.

Two-thirds of the U.S. population is currently overweight or obese and it is estimated that nearly half of American women are currently dieting to lose weight. Obesity is a known risk factor for many cancers as well as heart disease and diabetes. A relationship between body fat and the production of certain hormones and inflammatory markers is thought to contribute to increased cancer risk.

We know theres an association between obesity, sedentary behavior and increased risk of certain cancers, McTiernan said. The World Health Organization estimates that a quarter to a third of cancers could be prevented with maintenance of normal weight and keeping a physically active lifestyle.

The study was based on data from 439 overweight-to-obese, sedentary Seattle-area women, ages 50 to 75, who were randomly assigned to one of four groups: reduced-calorie diet only, exercise only (mainly brisk walking), reduced-calorie diet plus exercise and a control group that received no intervention. At the end of the yearlong study, participants on the diet-only and diet-plus-exercise arms lost an average of 10 percent of their starting weight, which was the goal of the intervention.

The analysis aimed to determine whether women with a history of moderate or severe weight cycling were at a disadvantage compared to non-weight-cyclers when it came to losing weight. Of the study participants overall, 18 percent (77 women) met the criteria for severe weight cycling (having reported losing 20 or more pounds on three or more occasions) and 24 percent (103 women) met the criteria for moderate weight cycling (having reported losing 10 or more pounds on three or more occasions).

Although severe weight cyclers were, on average, nearly 20 pounds heavier than non-cyclers at the start of the study, at the end of the study the researchers found no significant differences between those who yo-yo dieted and those who didnt with regard to the ability to successfully participate in diet and/or exercise programs. The cyclers also did not differ from the non-cyclers with regard to the impact of diet or diet-plus-exercise on weight loss, percentage of body fat and lean muscle mass gained or lost. Other physiological factors such as blood pressure, insulin sensitivity, and blood concentrations of hormones such as leptin (which helps make one feel full) and adiponectin (which helps regulate glucose levels) also did not differ significantly among those whose weight fluctuated and those whose did not.

These finding may represent a first in the scientific community. To our knowledge, no previous studies have examined the effect of prior weight cycling on the body composition, metabolic and hormonal changes induced by a comprehensive lifestyle intervention in free-living women, the authors wrote.

The National Institutes of Health, the National Cancer Institute and the Canadian Institutes of Health funded the research. The study also included investigators at Harvard Medical School, the National Cancer Institute and the University of Washington. Note for media only: To obtain a copy of the Metabolism paper, History of Weight Cycling Does Not Impede Future Weight Loss or Metabolic Improvements in Postmenopausal Women, please visit http://www.sciencedirect.com/science/article/pii/S0026049512002417. # # #

Read more here:
Yo-Yo Dieting Does Not Thwart Weight Loss Efforts or Alter Metabolism Long Term

ScienceDaily (Aug. 14, 2012) Yo-yo dieting -- the repetitive loss and regain of body weight, also called weight cycling -- is prevalent in the Western world, affecting an estimated 10 percent to 40 percent of the population. The degree to which weight cycling may impact metabolism or thwart a person's ability to lose weight in the long run has been unclear -- until now.

A new study by researchers at Fred Hutchinson Cancer Research Center, published online in the journal Metabolism, for the first time has shown that a history of yo-yo dieting does not negatively affect metabolism or the ability to lose weight long term.

"A history of unsuccessful weight loss should not dissuade an individual from future attempts to shed pounds or diminish the role of a healthy diet and regular physical activity in successful weight management," said the study's senior author Anne McTiernan, M.D., Ph.D., a member of the Hutchinson Center's Public Health Sciences Division.

Two-thirds of the U.S. population is currently overweight or obese and it is estimated that nearly half of American women are currently dieting to lose weight. Obesity is a known risk factor for many cancers as well as heart disease and diabetes. A relationship between body fat and the production of certain hormones and inflammatory markers is thought to contribute to increased cancer risk.

"We know there's an association between obesity, sedentary behavior and increased risk of certain cancers," McTiernan said. "The World Health Organization estimates that a quarter to a third of cancers could be prevented with maintenance of normal weight and keeping a physically active lifestyle."

The study was based on data from 439 overweight-to-obese, sedentary Seattle-area women, ages 50 to 75, who were randomly assigned to one of four groups: reduced-calorie diet only, exercise only (mainly brisk walking), reduced-calorie diet plus exercise and a control group that received no intervention. At the end of the yearlong study, participants on the diet-only and diet-plus-exercise arms lost an average of 10 percent of their starting weight, which was the goal of the intervention.

The analysis aimed to determine whether women with a history of moderate or severe weight cycling were at a disadvantage compared to non-weight-cyclers when it came to losing weight. Of the study participants overall, 18 percent (77 women) met the criteria for severe weight cycling (having reported losing 20 or more pounds on three or more occasions) and 24 percent (103 women) met the criteria for moderate weight cycling (having reported losing 10 or more pounds on three or more occasions).

Although severe weight cyclers were, on average, nearly 20 pounds heavier than non-cyclers at the start of the study, at the end of the study the researchers found no significant differences between those who yo-yo dieted and those who didn't with regard to the ability to successfully participate in diet and/or exercise programs. The cyclers also did not differ from the non-cyclers with regard to the impact of diet or diet-plus-exercise on weight loss, percentage of body fat and lean muscle mass gained or lost. Other physiological factors such as blood pressure, insulin sensitivity, and blood concentrations of hormones such as leptin (which helps make one feel full) and adiponectin (which helps regulate glucose levels) also did not differ significantly among those whose weight fluctuated and those whose did not.

These finding may represent a first in the scientific community. "To our knowledge, no previous studies have examined the effect of prior weight cycling on the body composition, metabolic and hormonal changes induced by a comprehensive lifestyle intervention in free-living women," the authors wrote.

The National Institutes of Health, the National Cancer Institute and the Canadian Institutes of Health funded the research. The study also included investigators at Harvard Medical School, the National Cancer Institute and the University of Washington.

Go here to read the rest:
Yo-yo dieting does not thwart weight loss efforts or alter metabolism long term, study finds

Public release date: 14-Aug-2012 [ | E-mail | Share ]

Contact: Kristen Woodward kwoodwar@fhcrc.org 206-667-5095 Fred Hutchinson Cancer Research Center

SEATTLE Yo-yo dieting the repetitive loss and regain of body weight, also called weight cycling is prevalent in the Western world, affecting an estimated 10 percent to 40 percent of the population. The degree to which weight cycling may impact metabolism or thwart a person's ability to lose weight in the long run has been unclear until now.

A new study by researchers at Fred Hutchinson Cancer Research Center, published online in the journal Metabolism, for the first time has shown that a history of yo-yo dieting does not negatively affect metabolism or the ability to lose weight long term.

"A history of unsuccessful weight loss should not dissuade an individual from future attempts to shed pounds or diminish the role of a healthy diet and regular physical activity in successful weight management," said the study's senior author Anne McTiernan, M.D., Ph.D., a member of the Hutchinson Center's Public Health Sciences Division.

Two-thirds of the U.S. population is currently overweight or obese and it is estimated that nearly half of American women are currently dieting to lose weight. Obesity is a known risk factor for many cancers as well as heart disease and diabetes. A relationship between body fat and the production of certain hormones and inflammatory markers is thought to contribute to increased cancer risk.

"We know there's an association between obesity, sedentary behavior and increased risk of certain cancers," McTiernan said. "The World Health Organization estimates that a quarter to a third of cancers could be prevented with maintenance of normal weight and keeping a physically active lifestyle."

The study was based on data from 439 overweight-to-obese, sedentary Seattle-area women, ages 50 to 75, who were randomly assigned to one of four groups: reduced-calorie diet only, exercise only (mainly brisk walking), reduced-calorie diet plus exercise and a control group that received no intervention. At the end of the yearlong study, participants on the diet-only and diet-plus-exercise arms lost an average of 10 percent of their starting weight, which was the goal of the intervention.

The analysis aimed to determine whether women with a history of moderate or severe weight cycling were at a disadvantage compared to non-weight-cyclers when it came to losing weight. Of the study participants overall, 18 percent (77 women) met the criteria for severe weight cycling (having reported losing 20 or more pounds on three or more occasions) and 24 percent (103 women) met the criteria for moderate weight cycling (having reported losing 10 or more pounds on three or more occasions).

Although severe weight cyclers were, on average, nearly 20 pounds heavier than non-cyclers at the start of the study, at the end of the study the researchers found no significant differences between those who yo-yo dieted and those who didn't with regard to the ability to successfully participate in diet and/or exercise programs. The cyclers also did not differ from the non-cyclers with regard to the impact of diet or diet-plus-exercise on weight loss, percentage of body fat and lean muscle mass gained or lost. Other physiological factors such as blood pressure, insulin sensitivity, and blood concentrations of hormones such as leptin (which helps make one feel full) and adiponectin (which helps regulate glucose levels) also did not differ significantly among those whose weight fluctuated and those whose did not.

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Study finds that yo-yo dieting does not thwart weight loss efforts or alter metabolism long term

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