Synopsis

Source of validity: Scientific
Rating (out of 5): 4

Protein is scientifically validated as an important nutrient in the support and treatment of injuries, particularly those involving muscle, connective tissue, and skin. During the healing process, the body requires increased amounts of protein to repair damaged tissues, synthesize new cells, and support immune function. Several clinical studies and reviews have shown that insufficient protein intake after injury can lead to delayed wound healing, muscle loss, and impaired recovery, especially in populations such as athletes, the elderly, and postoperative patients.

Protein provides essential amino acids necessary for the synthesis of collagen, muscle fibers, and other structural proteins vital to tissue repair. For example, collagen formation is critically dependent on amino acids like glycine, proline, and lysine, all of which are derived from dietary protein. Adequate protein intake has been associated with a reduced risk of wound complications, faster recovery times, and preservation of lean body mass during immobilization or reduced activity.

Guidelines from organizations such as the Academy of Nutrition and Dietetics and the American College of Sports Medicine recommend increased protein intake (often 1.2–2.0 g/kg body weight per day) for injured individuals, especially those with large wounds or recovering from surgery. While the exact optimal amount and timing can vary, the scientific consensus is strong regarding the necessity of dietary protein in effective injury recovery and tissue regeneration.

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