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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
If needles prevent consistency, lower bioavailability with reliable adherence beats higher bioavailability with sporadic use
Your Baseline B12 Levels If you were already low in B12, you may feel a noticeable energy boost quickly
With a 5mg vial reconstituted at 2mL (2.5mg/mL), here is how the math works across the full titration: At the starting dose, a single 5mg vial lasts nearly five months
