b12 injection left lump Best Vitamin Site: Administering B12 Shots Should I be concerned? I

The most common injection site is the deltoid muscle of the upper arm or the gluteal muscle in the buttocks

reports that " mice [exposed] every 48 and 72h reached higher body weight and length than placebo

Most of that risk comes not from diet but from a quiet, gradual decline in the body's ability to absorb B12 from food, plus the very common prescription medications (metformin, omeprazole, esomeprazole, famotidine) that further reduce absorption

Since vitamin B12 is a water-soluble vitamin, any extra will be excreted in the urine

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Two weeks ago, the Chairman of the society wrote to the Chief Medical Officers and the relevant Ministers for Health in each of the constituent countries in the UK, pointing out that the injections were not a cosmetic treatment but were required to prevent nerve damage or worse from happening