Should I have my dog neutered?
He's well-behaved. He doesn't mark inside, has never attempted to escape or roam in search of a female, doesn't get into dominance fights with other dogs, & doesn't hump dogs/people/toys. He does bark at strange men & occasionally women, but it's because he was abused & not socialized or trained before I rescued him. It's rapidly improving as well. He's friendly & confident with all dogs, male & female, and has never shown dog-aggression. But he's easily distracted by other dogs to the point where most high value treats can't get his attention.
He's fit, muscular, & healthy. Most neutered pets I know of are at least a little pudgy, even if they're energetic (but maybe it's just bad pet parenting?). I worry neutering him would change his physical health and he'll lose his muscles even if I reduce food intake & maintain his exercise regimen. I also read a few articles/studies that suggested neutering changes dogs' behavior for the worse.. I'm worried it'll cause him to revert to his crazy barking at men again, or even worse, become seriously aggressive. I know the best option is to talk to my vet, which I intend to do, but I want to get the opinions of seasoned dog owners as well. What do you think?