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New Weight Guidelines (BMI) The federal government's suggested new weight guidelines recently caused a stir across the country--in part because the guidelines would classify nearly 55% of Americans as overweight and at increased risk of such health problems as diabetes, elevated blood cholesterol, heart disease, stroke and high blood pressure. Released by the National Heart, Lung and Blood Institute (NHLBI), in cooperation with the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK), the guidelines were developed by a 24-member expert panel chaired by Dr. F. Xavier Pi-Sunyer, a leading obesity researcher and director of the Obesity Research Center at St. Luke's-Roosevelt Hospital Center. "The health risks are there and we felt that we owed it to physicians and their patients to alert them to this fact," Dr. Pi-Sunyer said, explaining the reasoning behind the new guidelines. "Being overweight, particularly in the upper body, is a risk for cardiovascular disease, diabetes, hypertension, and more, and we hope that the stricter guidelines will help health care professionals become more aggressive about testing for these concomitant risks--and about suggesting either no further weight gain or small weight losses in order to decrease risks." The guidelines define overweight as a body mass index (BMI)--a formula used to estimate body fat (see BMI chart) --of 25 to 29.9, while a BMI of 30 and above is considered obese. BMI describes body weight relative to height. According to Dr. Pi-Sunyer, the BMI is better than the traditional height-weight tables since the BMI is well correlated with total body fat content and applies to both men and women.
"These new definitions are consistent with the ones used in many other countries and are already used by many organizations, including the World Health Organization, the U.S. Department of Agriculture, and the American Heart Association," Dr. Pi-Sunyer said. These evidence-based guidelines have been reviewed by 114 health experts at major medical and professional societies. They are clinical practice guidelines for physicians which present a new approach for weight assessment and establish principles of safe and effective weight loss. "The new guidelines point out that there are no new or magic cures for weight loss. It stresses that the most successful strategies for weight loss include caloric reduction, increased physical activity and behavior therapy designed to improve eating and physical activity habits," Dr. Pi-Sunyer explained. The guidelines also advise physicians to have their patients try lifestyle therapy for at least six months before turning to physician-prescribed drug therapy. "Being overweight or obese are serious problems in the United States today," said Dr. Pi-Sunyer. "Hopefully,
these guidelines will encourage physicians and patients to take action to prevent and treat these conditions." Source: National Institutes of Health |
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