weight training

I understand that one of Metformin's mechanisms of action is the activation of AMPK and thus inhibition of mTOR, which theoretically could attenuate muscular adaptations to resistance training (i.e. blunting muscle hypertrophy). I also understand that Metformin has a potentially suppressive...

Curious about this matter: When drinking BCAA’s before fasted cardio, does the body utilise the amino acids or stored fat as its primary source of energy? Whilst taking in the consideration that the BCAA’s are 0 cals (negligible). Still getting the benefits of fasted cardio??

Obligatory new member post, 38 YO Female, cardio rat for the last 20 years, moving towards building lean muscle vs long duration cardio. Started focusing on protein goals and whole foods vs calories which seems to be working wonders...Hoping to still get my "vibe" trying a new workout approach...