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Reduction of MTT by glutathione S-transferase [PMID: 9793644] Laboratory literature summary: Reduction of MTT by glutathione S-transferase
Multiple studies have linked low vitamin B12 levels with impaired cognitive functioning and depressive symptoms, which can result from insufficient neurotransmitter production and damaged myelin sheaths
Overdoses of vitamin B12 are rare since it has a low toxicity level as a water-soluble vitamin excreted through the urine
Regarding prebiotic fiber, start with asparagus, Jerusalem artichokes, red onions and naturally fermented (not pickled) foods such as sauerkraut
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