CARRY ON LMFAO dude...powders in a plastic baggy in carry on? YOUR NUTS, they'll toss that shet right out and who knows to what extent they'll go. Cavity search? hahaha I Just Wanted a Chocolate Frosty Protein Shake on the Plane I sweaaaaaaaaar
In your luggage, in the cargo bay, done deal! Same with all pills and anything else loose. The only thing I brought in my carry on supplement wise were protein bars!