The good news is that BED is highly treatable, particularly with the help of cognitive behavioral therapy: Nearly 80 percent of patients abstain from bingeing after 20 sessions. And, unlike most calorie-restricting diets, the success of CBT holds for many patients over time.

However, a 2013 study in Biological Psychiatry found that less than half of lifetime bingers receive treatment. There are millions of overweight Americans who could find actual sustainable help with their eating issues—and not berate themselves for a lack of “willpower”—if more clinicians could identify the disorder and recommend treatment.