Is successful weight loss possible? Beginning from the presumption of “will power,” no. People who “diet” generally lose and gain weight in a yo-yo fashion, often with greater rebounds. But some people do successfully lose weight and maintain that loss. What makes them different, and what lessons does that hold for thinking about weight loss?
Let us start with this 2005 article by leading researcher Rena Wing and Suzanne Phelan. Here’s the abstract:
There is a general perception that almost no one succeeds in long-term maintenance of weight loss. However, research has shown that 20% of overweight individuals are successful at long-term weight loss when defined as losing at least 10% of initial body weight and maintaining the loss for at least 1 y. The National Weight Control Registry provides information about the strategies used by successful weight loss maintainers to achieve and maintain long-term weight loss. National Weight Control Registry members have lost an average of 33 kg and maintained the loss for more than 5 y. To maintain their weight loss, members report engaging in high levels of physical activity (1 h/d), eating a low-calorie, low-fat diet, eating breakfast regularly, self-monitoring weight, and maintaining a consistent eating pattern across weekdays and weekends. Moreover, weight loss maintenance may get easier over time; after individuals have successfully maintained their weight loss for 2–5 y, the chance of longer-term success greatly increases. Continued adherence to diet and exercise strategies, low levels of depression and disinhibition, and medical triggers for weight loss are also associated with long-term success. National Weight Control Registry members provide evidence that long-term weight loss maintenance is possible and help identify the specific approaches associated with long-term success.
A 2001 review article by Rena Wing and James Hill makes their argument more explicit: “common behavioral strategies, including eating a diet low in fat, frequent self-monitoring of body weight and food intake, and high levels of regular physical activity.”
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