Certain health conditions such as intestinal or stomach problems, poor nutrition, cancer, HIV, pregnancy, old age, veganism and alcoholism can cause vitamin B12 deficiency
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Populations at a higher risk of vitamin B12 deficiency include people who are vegetarian or vegan, exclusively breastfed infants of vegan women, older adults, those with gastrointestinal disorders or who have had gastrointestinal surgery, and people with an autoimmune condition known as pernicious anemia
However, if you are seeking B12 injections for preventative measures or for increased energy and improved mood, many insurance companies view these as elective or preventative treatments that fall outside of essential health benefits
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