[Diet 3.0: practical issues in everyday life].

Internet and the new technologies have changed the way of obtaining information of all kinds; also, information related to food and health. The sources of information and content generators have multiplied Doctors followed by other health professionals are the professional's citizens trust most to consults their doubts regarding health, food and nutrition, but the internet and social networks are increasingly used. The information on food, nutrition and health available on the net comes from very different sources and areas; from scientific journals, academic institutions, health organizations, scientific societies, professional, consumer or other kind of associations, companies from an array of sector who offer information and sell their products, or individuals with different profiles, who may or may not be qualified and present personal opinions, either independent or interested. The fact that when searching the internet for health issues citizens can access together with contrasted sources, other sites which publish information of uncertain quality has worried competent bodies and health professionals. A number of initiatives have been promoted to develop systems that allow the identification of websites that offer trusted quality health content, useful for patients and consumers. It is necessary that qualified health professionals contribute to the dissemination of quality information, easy to understand, in the internet and facilitate access to reliable information sources through directories. Citizens-active patients- active consumers need trusted information a reach in order to adopt informed decisions related to food consumption, own care or that of their families as well as to be able to participate in community actions.