Agreed but the mice study also included a higher fat diet as well as antibiotics. Presumably farm animals are not being fed donuts and so that explains the impl

Agreed but the mice study also included a higher fat diet as well as antibiotics. Presumably farm animals are not being fed donuts and so that explains the implicit difference between the two situations adequately. Nonetheless, I agree that the distinction should be made more clear. I'm wondering whether body builders are already dosing themselves on antibiotics? It seems like someone would have tried that a while ago and then built a minor religion out of it had it worked. A quick google search suggests that body builders tend to think that antibiotics will reduce muscle gain due to inhibiting digestion through killing off bacteria.