i flew to south korea with a carry on bag full of bottles of pills and powders because didint want them getting crushed in my luggage
I just flu from NY to Tokyo with the shaker the the tube of protein and it was fine, no body said anything...
We're not the TSA, but you should be fine. As long as what you are carrying is legal, just tell anyone who asks what it is that you have. Just package your supplements in a way, so that they don't get spilt, crushed, wet, or whatever.