Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Peptides, particularly bioactive peptides and peptide supplements like branched-chain amino acids (BCAAs) and collagen peptides, are used in athletic and exercise contexts due to their role in supporting muscle repair, growth, and recovery. Scientific studies have shown that certain peptides can enhance muscle protein synthesis, reduce exercise-induced muscle damage, and improve recovery times. For example, BCAAs (which are technically small peptides or amino acid chains) have been widely researched and are known to decrease muscle soreness and promote muscle repair after intense exercise. Collagen peptides, on the other hand, have been studied for their effects on joint health and connective tissue, with some randomized controlled trials indicating they may reduce joint pain in athletes and support tendon health. However, while there is moderate evidence supporting the use of specific peptides for these benefits, the overall quality of evidence varies by peptide type, dose, and study design. Not all peptide supplements have robust clinical trial support, and effects may be modest. Overall, the use of certain peptides as athletic and exercise aids is scientifically grounded, though more high-quality, long-term research is needed to fully establish efficacy and optimal use protocols.

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