Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Also known as wild marjoram, oregano is a perennial herb originating in Mediterranean countries, largely used in a variety of spicy foods (e.g. pizza and pasta dishes), as well as in cosmetics, dyes and perfumes for its enhancing and specific flavor. Recently, a new study carried out on some of oregano's components (carvacrol) showed it to be very effective against prostate cancer cells, producing almost 100 % inhibition of their growth. To find out more about oregano and its medical potential – read this book.