L’objectif de l’étude est de mettre en évidence l’existence d’un lien entre alimentation et identité. Les participants ont été recrutés par le biais de groupes Facebook portant sur le végétarisme, végétalisme et véganisme, une fois l’accord des administrateurs obtenu. Six entretiens ont été réalisés, retranscrits et analysés via le logiciel TROPES. L’usage majeur des verbes d’état et d’identité (être, devenir, « je ») ainsi que du pronom personnel « on », renvoie à une construction identitaire à la fois individuelle et collective autour de l’alimentation. Et, bien que la motivation principalement rapportée soit éthique, les participants ont spontanément abordé la question du poids et du corps. Quelle que soit l’histoire alimentaire des participants, des identifications aux troubles liés à l’image corporelle ou aux catégories de poids ont précédé l’identification à une alimentation spécifique. Or, l’adoption du végétarisme (au sens large) semble associée à une amélioration de l’estime de soi et de la perception de soi. These last years have been marked by an evolution as to how people feed themselves, highlighting a growing interest for vegetarian food. Vegetarianism at large refers to several types of food that are characterized by the partial or total exclusion of animal foods. This study aims at relating various elements associated to vegetarianism, such as eating motives, behaviors, self-perception and others’ perception, in relation with the notion of identity. Participants were recruited via vegetarian and vegan (for food and for lifestyle) groups on Facebook, once their agreement was obtained. Six interviews were conducted by a clinical psychologist around the notion of being and identity related to food, as well as the food history of the individual and his/her family. The use of retrospective investigation makes possible to establish a continuity between the past and the current eating behavior. These interviews, once manually transcribed, were the subject of a complex semantic analysis via TROPES software (version 8.4). The results showed a major use of state's and identity's verbs (being, becoming, “I”) and the personal pronoun “we”, referring to a construction of both individual and collective identity around the diet. The commitment to vegetarian/vegan diet has been primarily motivated by ethical concern. And, positive feelings have emerged following the adoption of this type of diet, such as pride, inner purity and a sense of being healthy and holy. Despite the fact that their diet is ethically focused, participants spontaneously addressed the issue of weight and body image. Whatever the food's history of participants, identifications to disorders related to body image or identifications to weight categories have preceded the identification to a specific diet. And the following of a vegetarian/vegan diet appears at the base of positive feelings toward oneself and a better self-esteem. So, we can assume that adopting a vegetarian/vegan diet could improve self-perception. Otherwise, the ethical choice mentioned by the participants, may be an acceptable sociable justification to control more or less the fate of their body (inside and outside). More research is needed to better understand the underlying mechanisms of vegetarian/vegan diet, to explore the personality profiles of individuals and their relation to the body.