Well the insulin response from BCAA's isnt the same as carbs thats for sure.
More or less BCAA's are just going to be utilized for ATP production, as they can be converted to glutamine and alanine for use in the krebs cycle.
They of course increase protein synthesis...but their main function in my eyes around your workouts is to spare glycogen and to reduce fatigue by competing for the same protein receptor carriers are tryptophan, so less tryptophan passes the blood brain barrier for conversion to serotonin.
But I have had success with going on no carbs PWO. I only do it while dieting mind you. I dont EVER go crazy on carbs even when bulking as I still utilize EFA's as a large part of my nutrition but I do feel carbs are important PWO for increasing protein synthesis and preventing peptide hydrolysis.
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