Common side effects include pain at the injection site, nausea, and dizziness
These are common signs people bring up when they ask us about B12: Ongoing tiredness or low energy Trouble concentrating or remembering Pale skin Mood changes or irritability Feeling lightheaded or weak If several of these sound familiar, a simple blood test can help you and your provider decide on the next steps
Injections may be used to quickly and effectively restore B12 levels, particularly in cases where malabsorption is a concern
Treatment regimens typically include more frequent injections initially (e.g., three times weekly for two weeks in non-neurological deficiency
Also, keep in mind that under-the-tongue supps may be more effective
Sixty-four people died and more than 750 got sick, some of whom had lasting ailments