Was on a certain diet for about 6 months 2 years ago where I had shakes 2 meals a day. Traveled every week with the powders. First week, the x-ray operator noticed my 2lb original plastic jugs of powder and I received a secondary inspection (which went off without a hitch, but took an extra 3 minutes)

Not wanting to waste 3 minutes a second time, every other week for the rest of that stupid diet regimen, I had roughly a week's worth of powder in a ziploc bag in my carry on rollaboard and it passed through the x-ray without comment or delay

This was always SFO on monday mornings, pretty even mix of UA t3 and DL t1