glutathione side effects kidney The Food and Drug Administration says injecting can damage the liver, kidneys, and nervous system Does Glutathione Damage Kidney Health?

These reactions were dose-dependent, with higher doses producing more frequent and sometimes more pronounced reactions

Poult Sci

UK B12 treatment for B12 deficiency without neuro symptoms is 6 loading jabs over 2 weeks followed by a jab every 3 months for B12 deficiency with neuro symptoms present, it is a B12 loading jab every other day for as long as symptoms continue to get better (could mean loading jabs for weeks even months) then a jab every 2 months UK b12 documents BMJ B12 article bmj.com/content/349/bmj.g5226 BSH Cobalamin and Folate Guidelines b-s-h.org.uk/guidelines/gui

This is called the 'folate trap'