MCT's...they travel in the blood via albumin instead of chylomicrons, do not requite carnitine to enter the cell/mitochondria...and they certianly do burn PREFERENTIALLY to other fats but I really do not know if it is a "quicker" energy souce. The more fat adapted a person is the faster they can access fat for energy even in very short duration situations but the glycogen is still key to maximize intensity. When I ski, snowshoe or hike I take coconut oil with me. it is the lightest most calorie dense food I can think of other than gnawing on butter! I will do some perusing of medline and see if I can find anything. I if studies have been doen I doubt if it is in fat adapted people.