Synopsis

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

Muscle tissue, particularly in the form of dietary protein from animal sources such as beef, chicken, or fish, is scientifically supported as beneficial during convalescence—the period of recovery after illness or surgery. Numerous clinical studies and nutritional guidelines recommend increased protein intake during recovery to combat muscle wasting, promote tissue repair, and support immune function. Muscle-derived proteins are considered high-quality sources of essential amino acids, particularly leucine, which is crucial for stimulating muscle protein synthesis. Randomized controlled trials have shown that patients recovering from surgery, trauma, or chronic illness experience improved outcomes—including faster wound healing, better maintenance of muscle mass, and enhanced strength—when they receive adequate dietary protein, often from animal muscle sources. The European Society for Clinical Nutrition and Metabolism (ESPEN) and other consensus guidelines recommend protein intakes higher than the baseline requirement for patients in convalescence, with emphasis on high biological value proteins. While whole muscle meat is not the only source of such protein, its use is both traditional and scientifically validated. There is limited evidence for the use of isolated "muscle" as a pharmacological extract, but as a food source, muscle is firmly established as supportive during recovery based on robust clinical and mechanistic evidence.

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