Extremely obese, take heart. You can hope to achieved sustained weight loss, even if modest, through appropriate physician advice, a new study shows. Also doctor intervention proves better than online guides.
Patients with a BMI higher than 40 (calculated as weight in
kilograms divided by height in meters squared) are encountered
regularly in most primary care practices in the US. Extreme obesity plagues 2.8 percent of men and 6.9 percent of women in the country, and it could cut down life expectancy by nearly a decade.
While surgery for obesity
is not always an option for the extremely obese, little is known about
medical weight management in that population. It was precisely this aspect the Louisiana
Obese Subjects Study (LOSS) sought to explore.
A total of 391 participants, most of them women and all of them with a body mass index above 40 (a BMI under 25 is considered healthy), participated in the study. Half were offered an Internet-based healthy lifestyle guide at the Mayo Clinic's Web site, and the other half participated in a comprehensive, doctor-led diet and exercise initiative, which included counseling, a 12-week liquid diet and weight-loss medication.
Of those in the doctor-led program, 31 percent achieved a 5 percent or greater loss, and 7 percent attained a 20 percent weight loss. By comparison, those figures dropped to 9 percent and 1 percent among the participants using the online guide. Some metabolic metrics, like levels of HDL ("good") cholesterol and triglycerides, also improved among participants in the intensive program.