A study in the journal Obesity found 66% of overweight and obese adults over age 60 who underwent a behavioral weight-loss program lost at least 8.8 pounds during the study's first phase, compared with 51% of those age 50 or younger. Researchers also found average weight regain after the study's second phase was 6.54% in patients age 50 and younger, 5.47% in patients ages 51 to 60, and 5.05% in the oldest group.

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