Protein intake in adolescent athletes: Nutritional requirements and performance implications.

This study investigated the crucial role of protein intake in meeting the specific nutritional needs of adolescent athletes. During adolescence, a phase characterized by rapid growth and development, protein is essential for muscle development, bone health, hormonal regulation, and immune function. The aim of this review is to highlight the importance of a well-balanced diet that addresses the unique requirements of adolescent athletes. Methods: This review compiles findings from peer-reviewed studies published between 2010 and 2024, focusing on protein intake, metabolism, muscle recovery, and athletic performance in adolescent athletes. Relevant studies were identified through a systematic search of databases, including PubMed, Scopus, Web of Science, and Google Scholar, using predefined keywords such as "protein intake," "adolescent athletes," "muscle recovery," and "sports nutrition." While adolescent athletes may have higher protein requirements owing to increased physical demands, this study emphasizes the importance of avoiding excessive protein intake, which could lead to potential health issues. Results: The findings indicate that adolescent athletes require 1.2-2.0 g/kg/day of protein, depending on the type of sport and training intensity. Research suggests that consuming 20-25 g of protein within 30 min after exercise can enhance muscle recovery. However, excessive intake exceeding 3.0 g/kg/day may lead to increased nitrogen excretion without providing any additional performance benefits. This study advocates for educational initiatives aimed at athletes, coaches, and parents to raise awareness about the crucial role of proper nutrition, including protein, in optimizing athletic performance and preventing injuries. In identifying research gaps, the study outlines areas for future investigation, such as optimal protein timing, the types of proteins, and their effects on performance and recovery in adolescent athletes. A thorough understanding of the protein needs of this demographic is essential for promoting both athletic success and longterm health. Conclusions: In summary, this study adds to the growing body of knowledge regarding protein intake among adolescent athletes, providing valuable insights that can inform nutrition planning, enhance performance, and support overall well-being during this crucial developmental stage. Future research should prioritize protein timing, plant-based protein alternatives, and metabolic differences across various sports.