Evidence supporting the use of: Beef
For the health condition: Muscle Tone (lack of)

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Synopsis

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

Beef is scientifically supported as a dietary component in maintaining or improving muscle tone, primarily due to its high-quality protein content and rich supply of essential amino acids, including leucine, which is particularly important for muscle protein synthesis. Numerous clinical studies have demonstrated that adequate protein intake, especially from animal sources like beef, supports muscle mass and function, particularly in older adults or those experiencing muscle wasting (sarcopenia). In addition to protein, beef provides nutrients such as iron, zinc, and B vitamins (especially B12), which play roles in muscle metabolism and energy production. Randomized controlled trials have shown that consuming lean beef as part of a balanced diet, especially when combined with resistance exercise, can help preserve or improve muscle tone and strength. However, the benefits are not exclusive to beef; other protein sources can have similar effects. The main scientific rationale is that beef supplies the necessary building blocks for muscle repair and growth, especially in individuals at risk of protein deficiency or with increased needs. Thus, while beef is not a unique or exclusive solution, its use for supporting muscle tone is well-supported by nutritional science.

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