Functional coffee is a type of coffee that is enhanced with additional ingredients to provide specific health benefits beyond the typical caffeine boost. These enhancements can include vitamins, minerals, adaptogens, or other natural compounds aimed at improving focus, energy, or overall wellness. Common ingredients found in functional coffee include mushrooms like reishi or lion's mane, which are believed to support cognitive function and reduce stress. Other variations may incorporate collagen for skin health or MCT oil for sustained energy. This trend caters to health-conscious consumers looking for more than just a traditional cup of coffee.