common reactions include transient pain, erythema, or pruritus at the administration site, along with mild diarrhea, headache, or nausea in a minority of recipients
When those trials are conducted, we find no increased fracture risk among those given B12
Some people might also notice mild diarrhea or a feeling of swelling in their body, but these are typically temporary
Who really benefits B12 shots make the biggest difference for people who are genuinely low, including: People with a diagnosed B12 deficiency Vegans and vegetarians, since B12 comes mainly from animal foods Older adults, who absorb B12 less efficiently People with pernicious anemia or digestive conditions that block absorption How to use B12 shots the right way If you decide B12 shots fit your plan, treat them as one piece of a bigger picture: Build the plan on food
We suggest doing blood tests and B12 level checks often