My biggest concern isn't calories as much as it is trying to find what works. Jellies seem to be something I can tolerate but they don't have the protein I also find I need. I have a tendency to get hypoglycemic and crash when I ONLY have carbs but I also need to drink carbs from things like skratch and get enough sodium. I wouldn't take bacon on a ride of less than 40 miles or unless it was hot and I was really sweaty but the turkey bacon I have is basically 120 calories for 4 slices, so less than some of the jellies I use. Not too shabby.