Curr Opin Chem Biol
First, you completely invalidate your results
I did have quite a bit of nausea but otherwise am happy so far
Be aware that B12 may temporarily discolour urine red or orange, which is harmless
It is currently under clinical investigation for the management of obesity and type 2 diabetes (as demonstrated in a phase 2 trial published in the New England Journal of Medicine), and as of the time of writing, it has not received marketing authorisation from the Medicines and Healthcare products Regulatory Agency (MHRA) or the European Medicines Agency (EMA)
doi: 10.1016/S0022-3999(01)00315-4 Summary Keywords Sensewear armband, myalgic encephalomyelitis/chronic fatigue syndrome, vitamin B12 nasal drops, vitamin B12 serum concentration, RAND 36 questionnaire Citation van Campen CLMC, Riepma K and Visser FC (2019) Open Trial of Vitamin B12 Nasal Drops in Adults With Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: Comparison of Responders and Non-Responders
