Two new recommendations: Breakfast/Trail: Carman’s Cranberry Apple & Nut Crunchy Clusters (needs no milk) & Snack: Carman’s Classic Fruit & Nut Muesli Bar. Both these have the ‘Low GI’ tick meaning (both) that they are suitable for folks with diabetes (or helping prevent it) and that they will keep you going for a long time without feeling hungry. Sometime (on the trail) you MIGHT need a quick energy boost (where maybe eg a square of chocolate is appropriate – I never do), but mostly you want food which will keep on delivering energy all day long. In this context, you might consider wholemeal angel hair pasta instead of the regular two minute noodles, or a mixture perhaps of basmati and brown rice (pre-cooked and dried of course to save fuel when reconstituting) or lentils etc. Obviously fresh fruit and vegetables arean impossibility on the trail, so maybe it is doubly important then to consider the effect on your pancreas of what you put in your mouth. Diabetes is NOT a disease; it is a diet!
See Also: http://www.theultralighthiker.com/a-hiking-food-compendium/