The Dangers of Yo-Yo Dieting
Weight cycling means losing weight, then regaining it, then repeating the cycle. When this weight loss is the result of dieting, the process is often called yo-yo dieting. New studies show that weight cycling contributes to heart disease and earlier death.
The doctors who preach lose weight to people with diabetes need to learn the dangers of weight cycling. Their prescriptions for weight loss may be doing more harm than good.
A new study in The New England Journal of Medicine found that, in patients with coronary heart disease (CHD), weight cycling was strongly associated with heart attacks, strokes, and death. Lead author Dr. Sripal Bangalore of New York University reported that the more weight subjects had lost and regained, the greater the risk.
The study reviewed records of roughly 9,500 people with heart disease. The data collection started in 2005. After a year of the study, participants continued to report their weight, among other factors, every six months.
Those whose weight had swung by an average of 8.5 pounds had a 124% increased risk of death, 117% increased risk of heart attack, and 136% increased risk of stroke compared to people whose weight had changed by 2 pounds or less. People with the greatest swings in weight also had a 78% increased risk of diabetes, even after correcting for all traditional risk factors.
The risk of weight cycling has been found before. In the Framingham Heart Study, which has been going on nearly 70 years, people whose weight swung up and down over the years were more likely to die of heart disease and strokes than people wi Continue reading