L-Glutathione is studied as a central antioxidant tripeptide involved in redox balance, oxidative stress response, detoxification-associated biochemical pathways, mitochondrial resilience, and cellular defense systems
GSH replenishment in human tissues is difficult due to its shorter half-life, and not easy to penetrate the plasma membrane hence use of prodrugs/precursors such as cysteine, and glycine is the most promising approach 4,45
it's a standard exclusion across the entire GHRH class
In contrast, in a combined study in Boston and New York recruiting 1068 pairs with maternal fish intake of 1.7 servings/week and showing median Se levels of 205.6 ng/ml, there was no evidence of an association of maternal prenatal fish intake, or of mercury (Hg), or of Se status with verbal or non-verbal intelligence, visual motor function, or visual memory at median 7.7 y of age [31]