Heres a table showing common prescription B12 injection strengths : Over-the-Counter Oral Supplement Ranges OTC oral vitamin B12 supplements have dosages from 500 to 2,000 mcg per serving
Vitamin B12: Fact Sheet for Health Professionals MedlinePlus, National Library of Medicine
The proper dose of B12 to stay healthy Those who are likely to need B12 shots include people with the aforementioned symptoms as well as those with illnesses like pernicious anemia, atrophic gastritis, infertility, heart palpitations, celiac disease, Crohns disease, pancreatic insufficiency, or AIDS
Trobisch at Synergy Wellness Center for a few years
a second afternoon dose extends coverage
Consider these factors when choosing the most suitable NAD+ supplement for you