What is it about?
This position paper summarizes the current state of knowledge regarding the physiological effects of protein intake in sports, Tailoring protein intake to an athlete’s specific type of sport and exercise intensity can be helpful in supporting the training process and improving performance. The aims of adjusting intake in this way may include maintaining or building muscle mass or muscle strength, preventing a catabolic state, and improving recovery following exercise.
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Why is it important?
Adequate intake of high quality proteins and amino acids is essential for the body in order to build up structures such as muscle, tendons, ligaments and bone. Protein intake also regulates and affects various metabolic processes, including hormonal regulation. Accordingly, proteins and amino acids are, to varying extents, able to stimulate or inhibit anabolic signal transduction pathways and the synthesis and secretion of various hormones such as insulin, growth hormone and insulin-like growth factor.
Perspectives
Even though the importance of protein intake in the field of sport is increasingly well-known, there is still much controversy regarding intake levels, types of protein sources, optimal amino acid composition, and ideal timing of intake. The lay press and commercial websites in particular often provide biased or incorrect recommendations without scientific evidence.
Alexandra Schek
University of Giessen, Germany
Read the Original
This page is a summary of: Position of the working group sports nutrition of the German Nutrition Society (DGE): protein intake in sports, German Journal of Sports Medicine, September 2020, Deutsche Zeitschrift Fur Sportmedizin,
DOI: 10.5960/dzsm.2020.450.
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