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Dean BJ, et al
Deficiency in vitamin B12 can lead to problems with the digestive tract including heartburn, abdominal bloating, constipation, diarrhea, loss of appetite, and nausea and vomiting
Whilst most patients find that initial fatigue improves within 48 weeks as the body adapts, persistent or severe tiredness warrants medical review to exclude other causes and ensure safe continuation of treatment
If you are considering injections, consult a licensed clinician who can verify the sterility, sourcing, and safety protocols of their supply
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