A member of the mint family, is used to treat respiratory tract disorders, gastrointestinal disorders, menstrual cramps, and urinary tract disorders. It is also applied topically to help treat a number of skin conditions, such as acne and dandruff. Oregano contains: fiber, iron, manganese, vitamin E, iron, calcium, omega fatty acids, manganese, and tryptophan. Oregano is also a rich source of vitamin K and antioxidants. Antioxidants help protect your cells against the effects of free radicals and improve your ability to fight infection.