The ingredients are a closely guarded secret by the Mexican government but lab tests have been successful in revealing some of the key ingredients. These ingredients being: milk, tomatoes, goat meat, 3 different cheeses ( cheddar, Mexican cheddar (cheddar with tequila)and an unknown cheese that is apparently responsible for much of the stank taste), 16.5 different types of beans (it is from Central America), as well it occasionally contains various nuts and corn. the other ingredients are unknown and research has stopped to prevent an international incident with Mexico.