Synopsis

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

Fish, particularly fatty fish like salmon, mackerel, and sardines, is a rich source of high-quality protein and omega-3 fatty acids, both of which are important for muscle health and maintenance. Scientific studies have shown that adequate protein intake is essential for muscle synthesis and repair, which can help maintain or improve muscle tone, especially in aging populations or those recovering from illness or injury. Omega-3 fatty acids found in fish have also been studied for their role in muscle function. Some research suggests that omega-3s may enhance the anabolic response of muscle to protein intake and exercise, potentially supporting muscle mass and strength.

However, while the evidence supports fish as a beneficial component of a diet aimed at maintaining muscle health, there is limited direct evidence specifically addressing fish consumption and the treatment of "lack of muscle tone" (hypotonia), especially in a medical context such as neurological disorders. Most research focuses on general muscle maintenance, age-related muscle loss (sarcopenia), or exercise recovery. Therefore, fish is scientifically supported as part of a balanced diet for overall muscle health, but its use as a treatment for clinical hypotonia is not well established.

References:
- Smith, G.I., et al. (2015). Fish oil–derived n–3 PUFA therapy increases muscle mass and function in healthy older adults. American Journal of Clinical Nutrition.
- Rodacki, C.L., et al. (2012). Fish-oil supplementation enhances the effects of strength training in elderly women. American Journal of Clinical Nutrition.

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