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Selenium toxicity can be a problem, especially for animals living in or around a body of water in an area with high soil selenium levels
In human patients, glutathione has been used as a treatment for chronic liver disease, mostly by intravenous administration
Testing for amino acid deficiency is also valuable if you experience other symptoms such as reduced immunity and mental alertness, blood sugar imbalances, digestive issues, and food sensitivities
doi: 10.1038/ng1767 19
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