Dry food is allowed in carry-on, no liquids. Make sure she takes all medication; insulin, needles, epipen, etc. out of her carry-on and place these items in the gray bin separately from all other item. She should advise the TSA personnel that she has these items before placing the bin through the x-ray machine so they know what to look for on the x-ray image. They may need to do additional screening so be sure she has any medical documentation just in case.
Dry food is allowed in