what size of needle for b12 injections intramuscular injection Best IM injection.... 1. 18G 2. 22G 3. 23G 4. 25G size needle for vitamin vitamin b12 injection needle size

Your body absorbs only as much as it needs, and any excess passes through your urine

B12 is also available in supplement form, either as part of a multivitamin or B-complex vitamin, or as a single supplement that contains only B12

This means that even if you fall from the top 90% to the bottom 10% for a particular marker, it could still be considered "normal." At Next Health, we take a different approach

That often includes: Older adults who naturally absorb less B12 from food Vegans and vegetarians who dont eat enough B12-rich foods People with stomach or gut issues (like Crohns or coeliac disease) Those on long-term medication that affects absorption Busy people who feel drained all the time and cant explain why If you fall into one of these groups, injections might be worth considering

Providers should reassess B12 blood levels every 3 to 6 months to determine whether continued injections are warranted