Did you read his post? Doesn't sound like the glp users are eating cage free eggs and avocado and running the trails. So now eating junk food and sitting on the couch is "addiction " ?
There's a pretty strong argument for junk food actually being addictive. It's hyper palatable and engineered to keep one coming back for more.
I can bake some pretty delicious, decadent cookies and be good after a few. Yet, I could absolutely crush a box of Oreos without issue... That's by design.
Foods packed full of salt, sugar and fat cause a rapid rise of dopamine in the brain's reward center, much the same as nicotine or cocaine... Not of the same magnitude of cocaine but it can be on par with nicotine.
Then there's the availability. If you need a "quick fix" there's probably something in your cupboard or at the corner store a block away. In polls, some people have reported quitting junk food to be more difficult than cigarettes or alcohol.
I, coincidentally, have been doing some reading about the food industry lately lol but I do believe processed foods are addictive. And, like other substances, that addiction varies from one person to another.
Some use glp1s and continue to eat junk, sure. But for some, a glp will help break that habit, and others as well. There are human studies underway looking at semaglutide and liraglutide as treatment options for alcohol use disorder. Also animal studies for nicotine, cocaine, amphetamines, heroin... And I've seen plenty of people say they started a glp to lose weight and ended up quitting smoking or something similar.
They seem to reduce dopaminergic signaling. And I definitely feel that, myself. Even a very low dose takes away cravings and kinda removes the reward if I do indulge. I get on great with tirzepatide but retatrutide gives me restless legs pretty bad... Another indicator of reduced dopaminergic signaling.
So, in short, I would argue that junk food is addictive, yes.
Maybe everyone should just toughen up and find some will power? Or perhaps some are just more prone to addiction and a glp levels the playing field? Maybe the way you feel, normally, is how someone feels with a glp turning things down a bit...