The injectable forms you can buy online are technically "for research purposes only." Which means we're talking about a substance with genuinely interesting science behind it - mostly in rats - that people are nonetheless injecting into themselves based on animal data and anecdotal reports
Hepatic effects that are considered adverse include death, abnormal clinical chemistry parameters, obvious functional organ impairment, DNA and mitochondrial alteration, glutathione depletion, hepatocyte necrosis, enhanced replicative DNA synthesis, generation of reactive oxygen species, and increased peroxisome proliferation (in rodents) (Williams and Iatropoulos 2002)
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Low B12 side effects can include: Fatigue Weakness Constipation Loss of appetite Weight loss Neurological changes (tingling, numbness) Depression Poor memory How Long Does It Take to Recover from B12 Deficiency
Glutation odgrywa take istotn rol w procesach detoksykacji organizmu