black seed oil raises glutathione Frontiers Molecular mechanisms and signaling pathways
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The dose-response curve showed peak activity at low nanomolar concentrations suggesting high potency
doi: 10.3389/fnagi.2022.830569, 129 WangY.XuY.ZhuC
Consistent with this, UPLC/MS data showed a reduction in glutamic acid levels, along with elevated concentrations of glycine, threonine, and cystathionine
In my own practice, especially if an older person has risk factors for vitamin B12 deficiency, I consider a vitamin B12 level of 200-400 pg/mL borderline, and I usually order a methylmalonic acid level as a follow-up
