b12 injection reddit B12 Level Back Below "Normal"

your body will use what it needs and harmlessly eliminate the rest

doi:10.1016/j.ymgme.2009.04.005

These options are usually best suited for people whose deficiency comes from not getting enough B12 in their diet, a common issue for vegans and vegetarians

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Common causes include: Pernicious anemia, an autoimmune disorder hindering Vitamin B12 absorption Gastrointestinal surgeries, like gastrectomy, impact Vitamin B12 uptake Long-term use of certain medications, such as metformin or proton pump inhibitors Diets lacking in Vitamin B12, often seen in vegans and vegetarians For those without a deficiency, Vitamin B12 injections are not typically recommended, as their body can naturally regulate and excrete excess amounts of the vitamin

Vitamin B12 supplements are common