Researchers tracked the weight of 278,982 participants (129,194 men and 149,788) women with the help of health records, over a period of 10 years. They looked at the probability of obese patients attaining normal weight or a five percent reduction in body weight. Patients who received bariatric surgery were excluded from the study.(Ditch These 5 Foods to Keep Obesity Away)
The study found that the chance of an obese person attaining normal body weight is one in 210 for men and one in 124 for women. And in the case of those that are severely obese, it increases to one in 1,290 for men and one in 677 for women with severe obesity.
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The annual chance of obese patients achieving five percent weight loss was one in 12 for men and one in 10 for women. For those people who achieved five percent weight loss, 53 percent regained this weight within two years and 78 percent had regained the weight within five years. Overall, only 1,283 men and 2,245 women with a body mass index (BMI) of 30-35 reached their normal body weight, equivalent to an annual probability of one in 210 for men and one in 124 for women.(Global Diabetes Rates Are Rising as Obesity Spreads)
Weight cycling, with both increases and decreases in body weight, was also observed in more than a third of patients. "This evidence suggests the current system is not working for the vast majority of obese patients," Fildes said.