This is in sharp contrast to GSH, which can only stay in the blood, truly achieving an efficacy upgrade from blood to cells
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Riboflavin status, measured by the functional biomarker erythrocyte glutathione reductase coefficient (EGRac), has been found to decrease only marginally, up to 10 % during pregnancy, however this was reported to occur together with a progressive increase in the prevalence of riboflavin deficiency, especially towards the end of the third trimester (Reference Heller, Salkeld and Krner63Reference Bates, Prentice and Paul65)
Some scientific studies found that whey protein supplements increase levels of glutathione and, therefore, reduce oxidative stress (4)
We discuss the scientific foundations of these interventions, their clinical effectiveness, and the challenges in their implementation