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2019, No
It needs to be consumed in the form of cystine, so it survives digestion, and gets into the cells intact, where it can be stored until needed to make glutathione when it is needed by the cells
This is a real GH-physiology consideration
A reduced incidence in lung, colorectal, and total cancer was also associated with supplementation with 200 g/day (82) but not with 400 g/day of selenium-enriched yeast (83)
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