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doi: 10.1038/s41589019-04081 36 TsikasD
The NAC Workaround Because NAC is more stable during the digestive process, it has traditionally been viewed as a more reliable way to raise glutathione levels
the serum B12 concentration of a given person may be 240 pmol/l with one assay, and 440 pmol/l with a different assay There is also considerable variability with just one and the same serum B12 assay
There is a lack of long-term safety data in healthy adults
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