A natureza jurídica da obrigação do nutricionista: dever de meio ou de resultado diante das promessas de transformação corporal nas mídias digitais

Abstract

The legal nature of the obligations assumed by nutritionists is analyzed, especially in light of body transformation promises disseminated through digital media. It begins with the classical distinction between obligations of means and obligations of result, widely discussed in Civil Law, to understand how communication strategies—such as "before and after" comparison images and implicit aesthetic promises—may influence the legal classification of the professional’s duty. Based on doctrinal foundations, legal provisions, and analysis of real cases drawn from case law and the Federal Council of Nutritionists, the research investigates to what extent nutritional advertising, even when technically grounded, can create legal expectations that impact the civil liability of the professional. The study ultimately proposes criteria for ethical and legally sound communication that upholds the right to information without turning the technical commitment of the nutritionist into a promise of guaranteed results. The methodology used is bibliographic research through the analysis of books, legal articles, international documents, legislation, and jurisprudence. The research is classified as pure and qualitative in nature, with descriptive and exploratory purposes.