"Binge" implies it's unhealthy. It's frequently necessary for people to gain weight in a healthy manner.

@AzorAhai ...but that's not a specification of the OP or necessarily a part of diet. Health is often associated with 'diet' but is not a necessary aspect of its definition.

@Mitch Sure, I'm just adding context I felt was missing in the answer. I didn't downvote.

@AzorAhai OK cool. I was too quick to think you were saying 'no, not this one'.

@Mitch I wouldn't use it, personally.

@AzorAhai Yes, 'bingeing' seems to be of a slightly different meaning than 'the opposite of dieting'. 'Dieting' is more of a habit; 'bingeing' a one time activity. But of course, in doing the opposite of a weight-loss regimen, bingeing may be one part of that.

@AzorAhai Current epidemiology says that weight-loss dieting is unhealthy. So binge would indeed be the correct, scientifically-accurate opposite of diet.

@Rich Do you have a citation for that? Given that the only way to lose weight is to eat fewer calories than you need, I find it hard to believe someone would issue the advice to never do that. | Second, a "diet" is typically a long-term thing, over months or years. "Binging" often refers to infrequent mass consumption. IMO, it would be odd to use "binge" to refer to a months-long, sustained plan to gain weight by overeating.

@AzorAhai That isn't really what's being debated here, but okay suit yourself. Here's one: sciencealert.com/… Eating less is only one variable in the equation - another is exercise, and the other is stress. Just as bulimia nervosa and anorexia nervosa are two sides of the same eating disorder coin, dieting and binging are the pre-clinical forms of the same disorders.

@Rich That link doesn't support your argument that diets are bad; just that some unbalanced diets are bad (like, duh). Anyone on a diet doesn't convert to anorexia, what sort of weird argument is that?

@Rich Perhaps you linked the wrong article then, because the article you linked is about "What she discovered ... is that no matter where you live or what your daily diet is like, banning entire food groups and thinking you can cheat your way into good health might work for a while, but it could also send you into an early grave," not that calorie restrictions are bad. | "personal dislike of factual information" lol

@AzorAhai AGAIN, this isn't up for debate. You asked for a reference, and that was simply one of many articles that can be found using pretty much any search engine. If you find your deeply-held personal opinions at odds with plain scientific fact, then perhaps it would be responsible to challenge yourself instead of holding onto long-discredited theory.

Under which universe binge means eating to gain weight? Binge can last for an hour, or a day or for a month (I doubt it can last for a month). It is not a planned or systematic way to eat to gain weight. Totally, irrational support to this answer. Answerer and supporter to check the definition before up-voting. Binge is just a eating spree or to say stuffing your mouth and tummy excessively.

@Rich You told me "binge" was an appropriately antonym to "diet" because they're equally unhealthy. So far you haven't shown that.

"I'm underweight, so I need to go on a binge." lol.

@AzorAhai suit yourself, I said.

@Rich I hope someday you learn to express yourself more politely. Have a good one.

@AzorAhai Sure, with your "Do you have a citation for that?" and your "what sort of weird argument is that?" and your "Perhaps you linked the wrong article then" and your "So far you haven't shown that." Maybe live up to your own expectations before you go doling out advice!