| Glucose tablets are a good idea, but a logical approach means you'll want stuff that'll stave off hypos in the first place. You'll need to seriously review your insulin requirements after the first day and it's a good idea to have Tracker bars and the like as a complex carb with high GI hit to keep you on the level. Don't bother putting in stuff like jerky if you're worried about maintaining BG levels. A trek like this is not a time to be carefully weighing out your carbs and proteins and fats. You don't have time or space to waste on the finer points of using proteins and fats. You need carbs, plain and simple. If you are backpacking for a week you are not going to be in danger of high bgs and even if you are, these are far less of a problem than lows.
You didn't give any info as to the specific nature of the trek but make sure you're going with at least one other person who knows you have diabetes and that you have regularly scheduled in food breaks for every four hours or so. | 
