Whether or not a Snickers or a Mars bar is an ideal survival food is a totally academic point for me. Where I live, The heat would just turn them into a chocolate goo 6 months out of the year. Do Cliff bars hold up in high temperatures?

I've been trying Kashi TLC ("Tender LIttle Chewy") granola bars that I have scored at Costco. 140 calories each but 45 of those are from fat (5 grams including 0.5 saturated). 19 grams of carbohydrates and 7 grams of protein. They taste good but don't seem to stay fresh and chewy as long as I'd like -- only about a month. Also kinda bulky for a survival food.