Introduction: Self-efficacy refers to personal ability to control one's own behavior, being able to adopt a beneficial behavior and stop practicing one that would be harmful. Its assessment as a tool in health field is becoming increasingly important. The objectives were assess perceived self-efficacy in university students related to eating behaviors considered healthy and determine possible differences between careers. Methods: A psychometric test of food self-efficacy was used, validated and adapted to the Argentine food culture. The instrument was made up of 20 items, with a response option according to the Likert scale (1: lack of ability; 5: being very capable), corresponding to 4 categories: high-fat foods; healthy food; sweet foods and healthy drinks. Participants included 300 students from 3 careers: Biochemistry (BQ) and Bachelor's degrees in Biotechnology (BB) and Nutrition (B...