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Intramuscular injections can be a bit more uncomfortable immediately than subcutaneous ones but do not usually increase serious complications
Summary: Vitamin B12 deficiency causes persistent, profound tiredness by impairing red blood cell production and reducing oxygen delivery to tissues throughout the body
We do not use any fillers in this process.
Low levels of B12 may include fatigue, weakness, pale skin, neurological symptoms, mood changes, or gastrointestinal issues
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