Protein Concentrate Whey protein concentrate dramatically raises glutathione levels. Glutathione protects immune cells and detoxifies harmful compounds in the body. Glutathione is intimately tied to immunity. Reduced glutathione levels have been associated with AIDS and other viral diseases, and raising glutathione levels appears to be one way of modulating immunity. A study involving HIV-positive men fed whey protein concentrate found dramatic increases in glutathione levels, with most men reaching their ideal body weight.
Whey protein improves immune function and fights infections.
Immune response also was dramatically enhanced in animals fed whey protein concentrate when exposed to such immune challenges as salmonella, streptococcus pneumonia, and cancer-causing chemicals. Again, this effect on immunity was not seen with other proteins. Studies have examined the impact of whey protein concentrate on preventing or treating cancer. It should be noted that not all whey protein concentrates are created equal. Processing whey protein to remove the lactose and fats without eliminating its biological activity requires special care by the manufacturer.