Oriol Sans studied economics, advertising and business communication. His professional activity takes place mostly in the world of business and institutional communication. In 1999 he was diagnosed as lactose intolerant and he started devoting a great part of his life to studying and disseminating knowledge about this intolerance. He is presently considered as a world reference on the matter. He writes articles and reports for different communication media and also leads dissemination seminars about this intolerance. In 2003 he founded ADILAC, Asociación de intolerantes a la Lactosa España (www.lactosa.org), and is currently its president. He also promoted the LIGN (Lactose Intolerance Global Network), a worldwide network whose aim is to establish a connection between all lactose intolerant people in the world.