DETERMINAÇÃO DO TEOR DE PROTEÍNAS EM BARRAS PROTEICAS COMERCIAIS: UMA ANÁLISE COMPARATIVA COM A ROTULAGEM NUTRICIONAL

Abstract

Protein bars have gained popularity among individuals engaged in physical activities due to their convenience and nutritional appeal. This study aimed to determine and compare the protein content and other macronutrients in five brands of protein bars available in the commercial market of João Pessoa, Paraíba, assessing their compliance with the nutritional information declared on the labels. The samples were analyzed in triplicate for protein content, moisture, acidity, ash, lipids and carbohydrates. The results were compared with the labels and analyzed according to Resolutions RDC No. 259/2002; RDC No. 360/2003 and RDC No. 18/2010. The results showed that all brands exhibited variations of less than 20% in protein content compared to the values stated on the labels, thereby complying with RDC 429/2020. However, none of the samples met the criteria established by RDC 18/2010 to be classified as high-protein products, either because they did not provide at least 10 g of protein per serving or because less than 50% of their energy content was derived from protein. It is concluded that, despite partial compliance, there is a potential risk of misleading consumers, reinforcing the importance of ongoing regulatory inspections.