i got my 4lbs in from proteinfactory and i threw up my first shake last night.
it tastes like chalk and leaves your mouth VERY dry.
i finally finished the shake and barfed about 20 minutes later...
I avoid soy - I read something that said it's molecular shape allows it to mildly stimulate the estrogen receptors.
I don't want any est stimulation beyond the minimal I get now.
i believe that study to be false. i read another study that said soy in its pure form can do that, but soy protein isolate which would be the purest form of soy protein will not.