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Its worth noting that cheaper supplements may contain artificial additives or sweeteners

It is naturally present in every cell of the human body, where it performs a number of essential functions: Supports detoxification processes Protects cells from oxidative stress Participates in the regeneration of other antioxidants (e.g., vitamins C and E) Supports proper liver function and immune system activity Over time and due to stress, illness, poor diet, or exposure to toxins the bodys natural glutathione levels may decline

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As cysteine itself may have strong anti-oxidant properties, its lower concentration in children with autistic disorder may contribute to increased oxidation of GSH [47]