Time to try Atkins again? Not so fast. A new report from the University of Pennsylvania School of Medicine showed that people who followed a low-carbohydrate diet lost more weight in the first year, but tended to regain most of the weight during the next two years. In contrast, people who stuck to a low-fat diet maintained their weight loss over three years.
The report, which appeared in the March 2 edition of the Annals of Internal Medicine, suggests that the difference in weight regain between groups reflects the initial weight loss, because greater weight loss within the first year was associated with greater weight regain from 12 to 36 months.
If you want to take it off and keep it off, a slow and steady low-fat diet may be right for you.
For more information, please see the Annals of Internal Medicine announcement, online at http://www.acponline.org/journals/annals/tipsheets/02mar10.htm.
Above figure: P = 0.003 for comparisons between diet groups at 6 months. The difference in weight loss between groups was not significant between the diet groups at 36 months (P = 0.071 before and P = 0.056 for the interaction between visit and dietary assignment after adjustment for baseline variables). Error bars represent 95% confidence intervals. Annals of Internal Medicine.
Penn Medicine is one of the world's leading academic medical centers, dedicated to the related missions of medical education, biomedical research, and excellence in patient care. Penn Medicine consists of the Raymond and Ruth Perelman School of Medicine at the University of Pennsylvania (founded in 1765 as the nation's first medical school) and the University of Pennsylvania Health System, which together form a $5.3 billion enterprise.
The Perelman School of Medicine has been ranked among the top five medical schools in the United States for the past 18 years, according to U.S. News & World Report's survey of research-oriented medical schools. The School is consistently among the nation's top recipients of funding from the National Institutes of Health, with $373 million awarded in the 2015 fiscal year.
The University of Pennsylvania Health System's patient care facilities include: The Hospital of the University of Pennsylvania and Penn Presbyterian Medical Center -- which are recognized as one of the nation's top "Honor Roll" hospitals by U.S. News & World Report -- Chester County Hospital; Lancaster General Health; Penn Wissahickon Hospice; and Pennsylvania Hospital -- the nation's first hospital, founded in 1751. Additional affiliated inpatient care facilities and services throughout the Philadelphia region include Chestnut Hill Hospital and Good Shepherd Penn Partners, a partnership between Good Shepherd Rehabilitation Network and Penn Medicine.
Penn Medicine is committed to improving lives and health through a variety of community-based programs and activities. In fiscal year 2015, Penn Medicine provided $253.3 million to benefit our community.