Sometimes TSA wants to see snacks, in which case I would be prepared to take out all IP products you have with you. About 5 years ago, my first time doing IP I was on a business trip for training and received a lot of heavy books. My checked bag was over weight, so not thinking I took out my IP ready made drinks and put them in my carry on bag. When my carryon bag was being scanned I realized my error and hoped my drinks would not be confiscated. Nothing was said and I made it through TSA scanning with 6 ready to drink cartons. These were the rectangular ready made drinks, which IMHO were much better than the current drinks in the bottles. Don’t know why IP changed their ready made drinks, but the prior ones were much better than the current ones. The previous ones are still available from other outlets (my coach sells both them and the IP products), but using them would not be keeping with protocol ☹️.