FAT SOURCE WITH A DIFFERENCE: Coconut oil is 100% fat. But it’s fat with a difference. Coconut oils, consumed in most tropical countries for centuries, are known as key sources of medium-chain triglycerides (MCTs). The main medium-chain fatty acids (MCFAs) in fractionated coconut oil (C8, or caprylic acid or octanoic acid, and C10, or capric acid or decanoic acid) are metabolized differently than other fats. They're transported directly to the liver from the digestive tract, where they may be used as a quick source of energy.