Inadequate B12 levels can result in anemia, leading to fatigue and weakness
However, if your body isnt getting enough B12, its not uncommon for you to see significant weight fluctuations
Like any injection, there may be some bruising, redness, and soreness at the injection site.
Consult a licensed provider before treatment if you are pregnant or breastfeeding, have significant liver or kidney disease, have a history of allergies to any ingredient (including B12/cobalt), are taking other medications, or have unmanaged medical conditions
These include drugs affecting blood cell production (chloramphenicol, anticancer or HIV drugs) and other vitamin and mineral supplements (especially folic acid)