INTRODUCTION: Powerlifting is a sport based on lifting the maximum weight possible in three exercises: squat, bench press, and deadlift (1). The range of consumption of supplements in sports (SS) is very wide and, currently, we place it between 30-95% (2). This variation in consumption can depend on various variables, mainly the type of physical activity or sport (i), the level of performance or competition of the athlete (ii), gender (iii), and age (iv) (3). The studies that collect the consumption of SS in powerlifters are scarce. Knapik et al (4), Petkova et al (5), and Al Saffan et al (6) show a high prevalence of use in this discipline with a percentage of consumption of 85%, 100%, and 73.1%, respectively. Currently, there is no research that studies the prevalence and pattern of consumption based on the variables that determine it in powerlifters. Thus, the objective of this study was to analyze possible differences in performance and consumption of SS in powerlifters of the international level (INT) with respect to the national level (NAT). METHODS: 32 male powerlifters (10 INT, 22 NAT) completed a 72-hour supplement diary (2 training days and 1 rest day), as well as a questionnaire regarding SS consumption. In addition, the best performance in squat, bench press, and deadlift during a competition in the month previous to the study was recorded. RESULTS: INT level athletes reported a higher total performance (+20,1%; p<0,001; ES=1,46) and in each of the exercises: squat, bench press and deadlift (p<0,05; ES=0,99-1,29). The 100% of the sample consumed SS, the most consumed being creatine monohydrate (63%), whey protein (59%), vitamin complex (34%), caffeine (25%) and branched-chain amino acids (19%), there being only differences in the consumption of whey protein by INT level athletes (90% vs 45%; p=0,024; OR=1,75 [1,11-2,76]). CONCLUSION: INT level athletes reported higher performance. However, there were no significant differences in overall SS consumption.
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