best way to get glutathione 5 ways increase levels A Review of Dietary (Phyto)Nutrients

S., Moszczynska, A., Mattina, K., Ang, L.-C., Boileau, I., Furukawa, Y., Sailasuta, N., & Kish, S

Neurology 2019;92(17):e2005e2014

Hi SKalila this is the first time I have ever heard of anyone saying that B12 injections have made then sick and I have been having them every month for over 48 years

The investigators attributed the angiogenic effect to upregulation of vascular endothelial growth factor receptor 2 (VEGFR2) and activation of the Aktendothelial nitric oxide synthase (eNOS) signaling pathway

So, unless youre deficient, megadoses of vitamin B12 may be just passing through your body and making some organs work harder (NIH-a, 2021)