Better to wait
Vitamin B12 is delivered by intramuscular injection, in the same way as common vaccinations
Some reasons your body may not be able to get enough B12 from food include: Anemia Gastritis Crohns disease Celiac disease Alcohol use disorder Sjgrens syndrome Weight loss surgery, or surgery that removes part or all of your stomach A vegan or strict vegetarian diet (as B12 is only found in animal products) Medications, such as metformin and drugs used to treat gastroesophageal reflux disease (GERD), indigestion, and stomach ulcers Pregnancy Your doctor could also order a B12 test based on your symptoms
If you have a mild deficiency, it might take two to three shots spread out over a few days or weeks before you start feeling better
This ensures your body gets the full dose right away, leading to a more noticeable and immediate improvement in your energy and overall sense of well-being
These symptoms typically resolve within 24 hours.* Medical Considerations: Not suitable for individuals with known allergies to cobalamin, cardiovascular conditions, or chronic kidney disease