MCT oil is most commonly made from coconut oil because it contains more MCTs than any other food source.
Dairy fat found in butter, milk, yoghurt, and cheese also contain MCTs but in minimal concentrations.
While there may not be many food sources high in MCTs, we humans are very well adapted to consuming them.
Our first introduction to them is during breastfeeding. Human breastmilk naturally contains a high concentration of medium-chain fatty acids (about 15% of total fats), making it an important source of energy and antimicrobial activity for infants.