Glutathione, one of the most important antioxidants in human physiology, is found in every cell in the body
doi: 10.3390/biomedicines9070744
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Many polyphenols can directly scavenge free radicals and also induce endogenous antioxidant defenses (e.g., upregulating glutathione, catalase, and superoxide dismutase), which helps restore redox balance in neuronal cells (10)
NAC is considered conditionally essential because your body can produce it from other amino acids
Fact: Glutathione and Fertility Myth: You can get all the glutathione you need from eating spinach and avocado