Diabetes etc here. I've noticed that wheat, especially some breads really affect my sugar levels and direaha etc. Mc Donalds buns and especially Wendy's raise my sugar and make it difficult to bring down sometimes. Over twenty something years I've came to this conclusion. our formerly and still, sometimes, hectic schedules make for a lot of junk food.
Some bread mixes for the bread machine, cause fewer digestive problems and don't affect sugar as bad. Some other mixes for quick made loaves are simply terrible. Loaf bread really is bad, for me. The potato breads are less os but still negatively affect sugar etc.
Cutting the crust off helps a lot. i suspect the preservatives and especially the anti mold etc spray they put on bread, whether from Juniper berries or what, cause a lot of digestive problems, and other things. No such thing as fresh bread in stores now.
scratch made corn bread not from GMO corn, pinto beans and just plain food affects sugar and digestion a lot less, or at least I'm forming that opinion form what I'm experiencing.
For travel, we're taking tea bags, and thermos and other glass lined vessels. Note, read the back of your salt box. Iodineized salt has dextrose and aluminum etc in it. None of the preservatives etc are good for our systems. I understand most salt has some of this stuff, including sea salt. So read the boxes.