B12 is also used by the immune system - so not having enough leads to higher rates of infection but also means that some of the responses that we associate with being unwell (which are actually the immune system fighting the infection) - like runny nose, rashes - can also seem to go into overdrive for a while
While the vitamin can start providing benefits in your body almost immediately following injection, most patients will start to notice the benefits after a few days
However, common symptoms of vitamin B12 deficiency include fatigue, weakness, pale skin, shortness of breath, and tingling or numbness in the hands and feet
Description What is AOD 9604 Peptide
Coeliac disease, inflammatory bowel disease (Crohn's disease or ulcerative colitis), and chronic pancreatitis can all cause both B12 malabsorption and diarrhoea