>but reports seem to indicate that GLP-1 drugs make you feel _tired_,

I know a few people that take one of the name brands, and they really don't complain about this issue. What they do talk about is having more energy after dropping weight because they just don't feel compelled to eat much anymore.

I'm not overweight myself, but I am a Type 1 diabetic from a young age. "Sugar noise" is not something that is easy to ignore. Especially in the case where you have excess insulin in your bloodstream but not active enough for your body to use it. Your body will scream at you to eat something sweet/carby. In people that are overweight this can be caused by insulin resistance. Until you experience it, it's really easy to say "People should try", but it's about as easy as telling someone to drop meth or heroin.