glutathione oral absorption evidence A Targeted Metabolomic Assessment of Bioavailability and Safety in Humans: A Randomized Crossover Clinical Trial Full article: Augmented Glutathione Absorption – Vitality - Glutathione

Here's the honest answer: it depends

In the case of the cross-sectional study conducted in a Se-deficient area, although the difference between HT and controls was not statistically significant, Se levels of HT patients were lower than those of controls, and we speculate that the results may be limited by the size of the study with too few sub-jects

Similarly, the RPM supplementation for cows during late pregnancy induced a rapid maturation of gluconeogenesis and fatty acid oxidation pathways in the offsprings liver at birth, which could favor the metabolic demands in postnatal life (Jacometo et al., 2016)

doi: 10.1136/gutjnl-2019-318747 10