This volume offers a new critical edition with facing English translation and a detailed study of the medieval manual of dietetics Occitan Health Advice dating from the 13^th century and probably compiled in the milieu of Montpellier's university. This Advice on health and well-being is a unique example of medical writing: composed in Occitan (formerly called Old Provençal), the vernacular language of southern France; it provided a wealth of medical information and guidance for a literate nonspecialist reader interested in a healthful life. This Advice will interest medical historians, literary scholars, and linguists, as well as readers curious about the Middle Ages, for all of whom it provides invaluable information on medieval daily life, dietary regimen, and healthy habits.