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Six out of the twelve brands tested failed to contain the stated amount of glutathione
Some formulations combine multiple amino acids with vitamins, minerals, or herbal extracts, making it difficult to assess the contribution of individual components
Statements Author contributions JW: Writingreview and editing, Conceptualization, Data curation, Investigation, Validation, Writingoriginal draft
Enzymatic assay for glutathione [PMID: 962073] Laboratory literature summary: Enzymatic assay for glutathione
[48] The thyroglobulin protein accounts for approximately half of the protein content of the thyroid gland
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