http://www.isdra.org/Beginners/Introduction/what_do_sled_dogs_eat.htm Fats and protein are the most important sources of energy for a sled dog. The ratio of fat and protein varies depending on the distance to be run and the time spent running, however, certain minimum requirements have been determined. A typical diet consists of 32% protein, 15% carbohydrates and 53% fat. 'bout right. Philip Thrift http://www.paleofitness.com