PREVALENCE AND PROFILE OF DIETARY SUPPLEMENT USE AMONG CROSSFIT PRACTITIONERS IN THE STATE OF RIO DE JANEIRO

Abstract

The practice of CrossFit has grown significantly in Brazil, demanding appropriate nutritional approaches to meet its metabolic requirements. However, the profile and frequency of ergogenic substance use raise public health concerns. This study aimed to investigate the prevalence and profile of dietary supplement consumption, for health and performance, among CrossFit practitioners in the state of Rio de Janeiro. A quantitative, descriptive, and observational study was conducted using an electronic questionnaire with 106 participants of both sexes, over 18 years of age and active in the modality for at least three months. The data revealed a prevalence of 78.3% of supplement consumption, predominantly in females (63.2%). The most used were creatine (87.6%) and whey protein (60%), mainly motivated by the increase in muscle mass and strength (63.8%). Although the nutritionist was the main source of guidance (38%), a considerable number resorted to self-recommendation through social networks and the internet (22.9%). Furthermore, side effects such as insomnia and gastrointestinal discomfort were reported, and only 56.6% were aware of the risks of improper use. It is concluded that, although there is high engagement and a positive perception of improved performance, there is significant vulnerability related to use without technical guidance, making it urgent to implement educational interventions and nutritional screenings in gyms to reduce health risks for practitioners.