When we say food 'aversion', we're implying that a drug like metformin makes you not want that thing, yes?
I've found when I take metformin, and then eat food later, I enjoy the food so much more as a craving/satiation thing. Especially steaks. But I'm not quite sure why that is. I can't say that what peers have told me about metformin is to help with weight loss, but supposedly the benefits/effects on the body are generally positive.
In my case metformin makes it so I just have no appetite, and certain foods are outright kind of revolting to me now. I can't do fried chicken while I'm on it.