Most people get sufficient Vitamin B12 from their diet, but some people may have low levels of Vitamin B12 due to having a digestive condition or vegans that follow a plant-based diet
For example, people who maintain a vegetarian or vegan diet, people with absorption disorders, and those taking prescription meds like Metformin, Proton Pump Inhibitors (PPIs), and H2 blockers like Pepcid are often at greater risk
Medications known to decrease vitamin B12 levels
Alcohol can interfere with B12 absorption, making it harder to maintain adequate levels
Other people who are at risk of having vitamin B12 deficiency include those who have had intestinal surgery, or who have gut diseases like Crohns disease or celiac disease
How to inject Vitamin B12