Bulletproof coffee is a type of coffee that is blended with Ghee butter and medium-chain triglyceride (MCT) oil, often made from coconut oil. The idea behind bulletproof coffee is that the high-fat content helps to slow down the absorption of caffeine, providing a more sustained energy boost and reducing the jitters or crashes that can sometimes come from drinking regular coffee. The Ghee butter and MCT oil also provide additional health benefits, such as increased satiety, improved cognitive function, and enhanced metabolism. It has gained popularity among fitness enthusiasts and those following a low-carb or ketogenic diet.