Synopsis

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

Amino acids, particularly the essential amino acids (EAAs) and branched-chain amino acids (BCAAs), have been scientifically studied for their roles in supporting injury recovery, especially in relation to muscle, bone, and connective tissue repair. Amino acids are the building blocks of proteins, which are necessary for the growth and repair of tissues. After an injury—such as muscle strains, ligament tears, or bone fractures—protein synthesis is heightened in the body to repair the damaged tissues. Supplementation with amino acids, especially those like leucine, has been shown in both animal and human studies to stimulate muscle protein synthesis and attenuate muscle breakdown during periods of immobilization or reduced activity (e.g., after surgery or injury). Clinical trials have demonstrated that protein or amino acid supplementation can help preserve muscle mass during rehabilitation and potentially accelerate the recovery process. For example, studies have found that BCAA supplementation may help reduce muscle atrophy and promote recovery after orthopedic injuries or surgery. Likewise, some research suggests that specific amino acids, such as arginine and glutamine, may support wound healing and immune function during recovery. However, while the evidence is promising, it is not universally conclusive, and results can vary depending on the type and severity of injury, patient population, and the specific amino acids used. Thus, the overall evidence rating is moderate (3/5), indicating good support but not unequivocal proof for all types of injuries or all populations.

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Douglas Laboratories Free Form Amino