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

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Synopsis

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

Casein peptides, derived from the enzymatic hydrolysis of casein protein found in milk, are used in sports nutrition to support muscle tone and mass, particularly in people experiencing muscle wasting or lack of muscle tone (sarcopenia). There is moderate scientific evidence supporting the use of casein (and its peptides) for muscle maintenance, especially due to its slow digestion rate, which provides a sustained release of amino acids. Several studies have shown that casein supplementation, particularly when combined with resistance exercise, can improve muscle protein synthesis and reduce muscle breakdown, especially overnight or during periods of fasting. This effect is largely attributed to its rich content of essential amino acids, including leucine, which plays a key role in muscle protein synthesis.

However, most research has focused on intact casein rather than specifically on casein peptides. Some studies suggest that casein peptides may be more rapidly absorbed than intact casein, potentially enhancing their effectiveness in supporting muscle recovery and growth. Despite these promising findings, the evidence is not as robust or extensive as it is for other protein sources like whey. The overall evidence for casein peptides specifically in supporting muscle tone is moderate, hence the rating of 3 out of 5.

In summary, while casein peptides are scientifically validated to some extent for supporting muscle tone, more targeted research is needed to fully establish their efficacy compared to other protein supplements.

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Products containing Casein Peptides

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