Synopsis

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

Whey protein is used to support or help treat free radical damage primarily due to its scientifically validated antioxidant properties, particularly its ability to boost intracellular glutathione (GSH) levels. Glutathione is one of the body's most important endogenous antioxidants, and its synthesis depends on the availability of the amino acid cysteine, which is abundant in whey protein. Several studies have demonstrated that supplementation with whey protein increases GSH concentrations in various tissues, thereby enhancing the body's defense against oxidative stress and free radical damage (Bounous et al., 1997). Beyond glutathione support, whey contains other bioactive components like lactoferrin and beta-lactoglobulin, which possess antioxidant properties. Clinical and animal studies have shown that whey supplementation can reduce oxidative markers in athletes and people with chronic diseases, though the magnitude of this effect varies by population and study design. While the evidence is promising, especially regarding the improvement of antioxidant capacity, the direct clinical impact on diseases associated with oxidative stress remains to be fully established. In summary, the use of whey protein for combating free radical damage is scientifically justified, with moderate-quality evidence (rated 3 out of 5), particularly for enhancing glutathione production and improving overall antioxidant defense mechanisms in the body.

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Other ingredients used for Free Radical Damage

Other health conditions supported by whey protein

Products containing whey protein

Nature's Sunshine AIVIA Whey Protein
Nature's Sunshine AIVIA Whey Protein
Nature's Sunshine Free Amino Acids