Vitamin B12 shots are often prescribed for people with: Pernicious anemia (autoimmune destruction of intrinsic factor needed for B12 absorption) Gastrointestinal surgeries (e.g., gastric bypass, ileal resection) Crohns disease or celiac disease Chronic alcoholism Long-term use of acid-reducing medications Vegan diets without supplementation Infants or children with congenital absorption disorders (i.e., vitamin B12 for kids in clinical care) Injections ensure direct delivery into the bloodstream, bypassing the digestive system entirely
You may feel the noticeable effects for about one to two weeks, but traces of the vitamin can linger longer because your liver stores some of it
H., Kamasaka, H., & Kuriki, T
Youve probably heard that you should eat plenty of fruits and veggies to obtain all your vitamins and minerals, but why are vitamins important in the first place
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