glutathione production Critical Roles of the Cysteine–Glutathione Axis in the of γ-Glutamyl Peptides in the Nervous System Enhanced glutathione production by bifunctional
Description
Strict vegans who take no animal or dairy produce may not eat enough vitamin B12

Further, those with higher B12 levels and taking high dose vitamins had better outcomes with stroke, death, and heart events compared to those with lower B12 levels and taking low dose vitamins (3)
Marcus et al., 2018)

Even mild symptoms need careful observation to avoid escalation

The ghrelin blockade counteracts the obesity-associated glucose intolerance [58]

If youve tried B12 supplements and didnt notice much improvement, injections might be a better fit