Being able to lose weight while continuing to eat is a wonderful thing. There is no virtue in spending your willpower making your body do something it desperately doesn't want to do. That's some puritan shit.
Granted, once you go past middle age, it can become a bit more complicated.
Someone brought up doughnuts as an example, but that's a ridiculous source of calories: I could probably down half a dozen doughnuts (a daily calorie budget) and then go for a normal meal afterwards.
Eating only becomes disordered if one can't be bothered to eat healthy food as a rule and then freaks out about weight gain as a result.
This is sexist and absolutely not true, there are plenty of women capable of pre-planning what they're going to eat and sticking with it. It's not "dieting", it's living a healthy lifestyle and not regularly eating junk.
This whole thing is about trying to find shortcuts to get to the pleasure of having a nice body while circumventing the pain and effort.
Pain and efforts are important, they forge character like nothing else. If you want to live in a world where adult-children simply take their soma to get what they want, you're just not thinking about the consequences.
Why is this particular thing the bad thing?
Also, about headaches and more generally physical pain that you know is only temporary and not a sign of radical bodily malfunction, I say yes: enduring a reasonable amount is important to develop a tolerance to it and willpower.
What I'm saying isn't new anyway, everybody knows some amount of struggle is needed to temper character and not fall to the most insidious poison of our times: constant comfort.
We're about to see the nutritional equivalent.
If you are right then there should be money to be made by shorting the stock.