Again, this might not be right for everyone and there are plenty of things on the market. It is the attitude that has worked for me. Sometimes I allow myself a can of sugared soda if it is an emergency. Although I have found that a can of soda doesn't have enough legs to take me very far. Sometimes I carry fruit as well.
Raisins are good and easy to carry.
I always carry something so that I will not end up in trouble physically or mentally. With this method I have lost 51 pounds since June of last year. I have lost weight before but not this much and not this way. In the past it has always been more risky, as I was trying more conventional diets which do not take into account the dynamic of having CPT deficiency. In the past my dieting also increased the likelihood of CPT attacks because I was often depriving my muscles of what they needed, or more importantly, wasn't giving them what they needed when they needed it.