(PubMed) Clarke R, Birks J, Nexo E, et al
not only is it illegal, but product quality and sterility would be uncertain
Deficiency Risks and Who Is Most Affected Certain groups are at higher risk of deficiency, including: Vegetarians and vegans Adults over 50 with reduced stomach acid Patients with gut disorders such as Crohns or celiac disease Those taking long-term acid-reducing medications Symptoms of deficiency can include fatigue, pale skin, memory loss, depression, numbness, or tingling sensations
So, if you find you need a 2mg injection instead of a 1mg injection, youd save more with a competitor
Darkening of the solution may occur over time