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Methionine and cysteine residues are vulnerable to oxidation, especially under light or trace metal exposure (Manning et al., Pharm Res, 2010)
Xiao Q, Deng D, Li H, et al
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sIgA coats the intestinal lining and neutralizes pathogens before they penetrate the barrier
However, always check with a healthcare provider to ensure there are no contraindications with your specific supplement routine
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