Hi Re-ride..........I was top and tailing my workouts with 10g pre and 5g post mixed in with my shakes...couldn't sus out why my sleep turned to cr*p...then I came across the article on the Charles Poliquin site...so cut it from my workout shakes and mix now I mix 5g in my am shake....no probs.myprotein was running a sale on their Labdoor recommended undenatured whey isolate. I also ordered Glycine powder and their BCAA(orange) and glycine. Shipping is fast and free with $75 min or $4-5.
Too early to comment on any benefit from the Glycine. I will say their whey has a very clean taste, dissolves well and for me goes down easily and satiates (unflavored). Pkg recommendations are Glycine, 1/6 teaspoon (750 mg) and BCAA. 1 teaspoon.
Thank you Davet for calling attention to possible reduction in serotonin/dopamine precursors from high dose BCAA. Grateful if you will elaborate on "high dose" and which serum assays we should "take a look at".