b12 injection cycle Best Vitamin Site: Administering B12 Shots How Often Should You Get

These signs may indicate degradation or contamination

Proc Soc Exp Biol Med 1958;97:780-4

This includes vegans and vegetarians, older adults, individuals with atrophic gastritis, pernicious anemia, gastrointestinal disorders, those who have had gastrointestinal surgery and people who take certain medications including, but not limited to, estrogen (HRT), and birth control pills

Current evidence suggests that B12 can potentially trigger acne in susceptible individuals, though this does not affect everyone

Self-diagnosing or self-treating can delay proper care

When a larger amount has been used Poisoning or overdose symptoms are not known