This study aimed to evaluate the knowledge about healthy eating and consumption of dietary supplements by practitioners of functional training at an academy in the city of BocaitIva, Minas Gerais. A questionnaire was used to collect data with questions about sociodemographic and economic aspects, life habits and the evaluation of healthy eating habits and use of dietary supplements. Thirtyone individuals were evaluated, being 68.3% female and 31,7% male, aged between 18 and 59 years. Of these, 95,1% of the participants reported practicing other sports as well as functional training. 36,6% reported having "very good" knowledge about healthy eating. About which macronutrient should have higher daily consumption 17,1% answered carbohydrates, and in turn, 89,9% cited proteins. 9,8% are users of dietary supplements, the coach being the main source of indication (50%). Protein foods and energy replenishers are the most consumed types of supplements (75%), followed by compensating foods (50%). Regarding knowledge about supplements, 53,7% said they did not have any. It has been observed that most people have sufficient knowledge about healthy eating and little knowledge about the use of dietary supplements. However, the exacerbated consumption of proteins by the athletes demonstrates lack of adequate nutritional guidelines.