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Note that the side chain of glutamate and the amide of cysteine are joined through a g-peptide linkage

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Research has explored glutathiones role in normal cellular function, and levels may vary based on age, diet, lifestyle, and other individual factors

In some countries, including the United States, Canada, and Australia, NAC is commonly available as an over-the-counter nutritional supplement, with antioxidant properties and great commercial appeal as a nutraceutical [2]