Have you ever wondered why so many Americans struggle with long-term weight loss? Is it the way food is prepared, the lifestyle, or the environment? Could it be food habits learned early in life, why people eat for comfort, or might the reason be the way food is marketed? And why is taste more important than health? Weight loss is determined partly by genetics and with the ability to substitute healthier ingredients for familiar ingredients that may not be healthy for your individual genetic and metabolic expression.
Please check out the three daily health columns that I write: 1. Sacramento Nutrition Examiner, 2. Sacramento Healthy Trends Examiner, 3. Sacramento Holistic Family Health Examiner.
Allow one week for page post for the newest Sacramento Holistic Family Health Examiner column. Note, that although I have six articles on this third column I'm writing daily, it does take a week for the articles to migrate to the browser and become 'live.' So for the newest column, the Sacramento Holistic Family Health Examiner column, please check back in a week to make sure the articles are posted live. They're on the browser but have to be migrated from the company's side to become live. Thanks for your patience.
In addition to my daily Sacramento Nutrition Examiner Column, now going on its second year, articles about health not always related to nutrition appear in the Healthy Trends column (on healthy trends) and on holistic family health (in the newest Sacramento Holistic Family Health Examiner column).
Why do I write three columns? This is my full-time endeavor. After age 70 or so, it's one great alternative to the laughter club at the senior center or taking more life-long learning classes. (Those are taken one day a week). So when you're looking for more health-oriented columns and news in addition to nutrition, check out all three of these columns.
Did You Know There's A National Weight-Control Registry at the CDC site?
The National Weight-Control Registry (NWCR), established in 1994 by Rena Wing, Ph.D. from Brown Medical School, and James O. Hill, Ph.D. from the University of Colorado, is the largest prospective investigation of long-term successful weight loss maintenance, according to its website.
Given the prevailing belief that few individuals succeed at long-term weight loss, the NWCR was developed to identify and investigate the characteristics of individuals who have succeeded at long-term weight loss. The NWCR is tracking over 5,000 individuals who have lost significant amounts of weight and kept it off for long periods of time. Detailed questionnaires and annual follow-up surveys are used to examine the behavioral and psychological characteristics of weight maintainers, as well as the strategies they use to maintaining their weight losses.
Research findings from the National Weight Control Registry have been featured in many national newspapers, magazines, and television broadcasts, including USA Today, Oprah magazine, The Washington Post, and Good Morning America.
On the topic of nutrition, did you ever wonder why long term weight loss is difficult for many people? Check out the September 3, 2010 EurekAlert! news release, "Americans struggle with long-term weight loss." Only about one in every six Americans who have ever been overweight or obese loses weight and maintains that loss, according to Penn State College of Medicine researchers.
While that number is larger than most weight-loss clinical trials report, the majority of Americans are still unable to lose weight and keep it off. Identifying those who lose weight and successfully maintain that loss may aid health professionals in developing approaches to help others maintain weight loss, the researchers say.
Two-thirds of the United States adult population is overweight, defined as a body mass index (BMI) of at least 25, or obese, a BMI of at least 30. Obesity rates, which doubled between 1980 and 2004, increase the risk of type 2 diabetes and high blood pressure. The recommendation is often to lose at least 5 to 10 percent of initial body weight with these conditions.
Weight loss and weight maintenance programs need significant changes in their effectiveness and availability to affect these numbers, note the researchers.
"It is important for health professionals to understand the true prevalence of long-term weight loss, as it may help to change the underlying beliefs and influence clinical practice," explained Jennifer Kraschnewski, M.D., M.P.H., assistant professor of medicine and public health sciences, in the Sept. 3, 2010 news release. "Studies have shown that physicians may not believe offering weight loss advice and counseling is a worthwhile activity in clinical practice. An awareness of our findings may encourage health professionals to pursue weight loss counseling for overweight patients."
Previously, data came from either published clinical trials or the National Weight-Control Registry, made up of only of those able to lose at least 30 pounds and keep it off for a year. The registry does not represent the entire population, so it is not useful for providing estimates of long-term weight loss in the country.
Penn State College of Medicine researchers analyzed data from the Centers for Disease Control and Prevention's National Health and Nutrition Examination Survey from 1999-2006, a nationwide survey evaluating the health and nutrition of a representative portion of the population. Participants of this survey self-reported weight status and history.
The National Health and Nutrition Examination Survey (NHANES) is a program of studies designed to assess the health and nutritional status of adults and children in the United States. The survey is unique in that it combines interviews and physical examinations.
Researchers, according to the news release, "Americans struggle with long-term weight loss," calculated the body mass index (BMI) for each individual and determined if they achieved 5, 10, 15 or 20 percent long-term (long than one year) weight loss maintenance. The sample included 14,306 people: 52.3 percent men and 47.7 women. One-third stated a current goal of losing weight, with 82.6 percent classified as overweight or obese.
Thirty-six percent of the sample had maintained a weight loss of at least 5 percent of their initial body weight. This is a higher rate than clinical trials, which have shown only 10 to 20 percent of individuals able to maintain a loss of at least five percent. This difference may be that while those who participate in clinical trials are a selected population, the numbers in the current study include unintentional weight loss, or the current study captures temporary weight gain that is typically lost at specific instances, such as the so-called "freshman 15."
In the sample, women, adults age 75 to 84, non-Hispanic whites and those with less than a high school education showed stronger longer-term weight management.
"Identifying a significant percentage of the population that is succeeding in some weight loss may be an important target population for weight maintenance programs," Kraschnewski said, according to the news release. "Although the amounts lost are modest, if a substantial number of individuals achieved such losses, it would have a significant public health effect. Particularly, those individuals who have lost at least five percent and kept it off -- one in three Americans who have ever been overweight -- may represent a unique opportunity to reach a target population who has had some success but could benefit from greater weight loss efforts."
Other key findings of this study:
- Women had a higher prevalence of a long-term weight loss of at least 10 percent than men; married or partnered individuals had a lower prevalence.
- A quarter of those reporting having diabetes experienced long-term weight loss maintenance, compared to 16.5 percent for those who didn't have diabetes.
- Sixty-nine percent of those who reported losing at least 10 pounds the previous year said it was intentional. Intentional weight loss was more likely to be in younger individuals, females, non-Hispanic whites, those with greater than high school education, and those with a history of diabetes or better overall health.
Researchers published their findings in the International Journal of Obesity.
Other members of the research team are Jarol Boan, M.D., M.P.H., associate professor of medicine, Christopher Sciamanna, M.D.,M.P.H, professor of medicine and public health sciences, and Jolene Esposito, research coordinator, Division of General Internal Medicine, Department of Medicine, all from Penn State College of Medicine; Nancy.E. Sherwood, Division of Epidemiology and Community Health, School of Public Health, University of Minnesota and HealthPartners Research Foundation; Erik Lehman, M.S., biostatistician, Department of Public Health Sciences, Penn State College of Medicine; Donna Kephart, M.H.A., senior instructor, Department of Public Health Sciences, Penn State College of Medicine.
Comments