Tonight I spent a lot of time working on liquid calories. Check out the work I completed on a variety of drink mixes that allow for large caloric intesity... in a 1 quart volume. To me this is the kind of thing you look forward to on the trail. Yum... a full 32 oz of Gatorade! Plus some Orange, Grape, 2 kinds of Gatorade, Sweet Tea & Lemonade combo, and a milk for examples. Each has the calorie content per QUART serving. Except the milk.