MCT oil is a supplement made from a type of fat called medium-chain triglycerides. MCT molecules are smaller than those in most of the fats you eat (long-chain triglycerides [LCT]). This makes them easier to digest. You can absorb MCT in your bloodstream quickly. This turns it into energy you can use. MCT oils work to increase the benefits of CBD by increasing CBD’s bioavailability and allowing more CBD to reach the bloodstream than it would otherwise. MCT oil acts as a carrier for CBD so more of the beneficial cannabinoid ends up reaching the bloodstream. Coconut oil is an abundant souce of MCT.