does a b12 injection work straight away How Quickly Shot Work? What to Expect How Long Does It Take

Multiple compounds targeting the same pathways may cause excessive stimulation or unpredictable interactions

B12 is : found naturallyin animal sources like meats, eggs, seafood, and dairy

(1) Groups at Risk of a Potential Vitamin B12 Deficiency Some people are at a higher risk for B12 deficiency, including those who: Have celiac disease, Crohns disease (a gastrointestinal disorder that can impact B12 absorption), or HIV Regularly take antacids, proton pump inhibitors, or other gastric acid inhibitors (these medications reduce gastric acid secretion and can interfere with vitamin B12 absorption, increasing deficiency risk) Follow vegan diets (vegan diets lack sufficient vitamin B12 sources, as B12 is mainly found in animal products) Are exclusively breastfed infants of women on vegan diets (these infants are at risk of B12 deficiency due to low maternal B12 intake)

References Park, H

B12 Injections for Pernicious Anemia For individuals with pernicious anemia, B-12 injections are often the preferred method of treatment