does sublingual glutathione work Effects of N-acetylcysteine, oral (GSH) and a novel form of GSH on oxidative stress markers: A comparative crossover study Source Naturals Reduced Glutathione Sublingual

The tryptophan-kynurenine pathway functions as a stress-activated metabolic system that diverts tryptophan from serotonin synthesis toward kynurenic acid production, which acts as a glutamate receptor antagonist and may contribute to anxiety pathophysiology through altered glutamatergic neurotransmission (Butler et al., 2022)

Surely this thought originally was valid because that's why you're so excited about it

However, the reduction in pre-B cells during zinc deficiency mirrors the effect observed in T cells and is associated with altered glucocorticoid metabolism and increased apoptosis, highlighting shared mechanisms of immune impairment under zinc deficiency [376]

An older study by Vanitallie et al