70 Gastric lavage, activated charcoal ingestion, and vomiting induced by ipececauanha can all reduce drug absorption, but weak evidence suggests activated charcoal as the preferred method of gastrointestinal decontamination
Leading medical sources, including The BMJ and Harvards Nutrition Source, emphasize that elevated B12 levels alone do not indicate toxicity or adverse effects
doi: 10.3389/fimmu.2018.01605 422 JohnstonSCStainesDRMarshall-GradisnikSM
Q2: Why is WHO-GMP certification necessary
[1] The results were exciting: [1] While L-citrulline alone increased plasma arginine, the combination with glutathione was most effective at increasing plasma nitrite and nitric oxide metabolites (NOx)
Glutathione contains a large percentage of the Cys, so the thiol group (of Cys) is the leading chemical group regulating its biological and biological functions [31]