This doesn't mean inject directly into the tendon or joint
Those most commonly affected include people over 50 as the ability to absorb B12 from food naturally declines with age as well as vegetarians and vegans, those with pernicious anaemia, anyone who has undergone gastrointestinal surgery, and those living with digestive conditions such as Crohn's disease or coeliac disease
What are the common side effects of Vitamin B12 injections
Adults usually start with 1000 mcg (1 mg) of vitamin B12
(See here: Individual results may vary, and these medications should only be used under the guidance of a qualified healthcare professional
Always follow your healthcare providers instructions, ensure sterility during use, and be aware of potential side effects, particularly if youre allergic to preservatives or treating infants