side effects of vitamin b12 injections weight loss shots for loss: Do they work, risks, benefits, and more B12 Injections for Weight Loss
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Potential Side Effects and Precautions While methylcobalamin injection is generally considered safe, some people might experience minor side effects, such as: Pain or redness at the injection site Mild diarrhea Headache or nausea Rare allergic reactions In patients with kidney issues or those on certain medications, methylcobalamin must be used cautiously
However, this is controversial, and more evidence is needed
