Non-surgical procedures dont affect metabolism or prevent future weight gain
There are minor side effects associated with B12 shots, including possible pain and swelling at the injection site, nausea, and headaches for some people
Adults who may need evaluation for low B12 include strict vegans, some vegetarians, older adults, and people with digestive conditions that affect absorption
How much does a Vitamin B12 injection cost
For example, one study found that taking 1,0002,000 micrograms orally in properly timed doses helped improve levels as much as injections
However, some people have difficulty absorbing vitamin B12 from their diet, including dietary restrictions, certain medical conditions like pernicious anemia, or medications that interfere with B12 absorption