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"Diagnosis, Treatment and Long-Term Management of Vitamin B12 Deficiency in Adults: A Delphi Expert Consensus"
Seek immediate medical attention if any of these rare but very serious symptoms occur: chest pain (especially with shortness of breath), weakness on one side of the body, sudden vision changes, slurred speech
Frequently Asked Questions Common symptoms include persistent fatigue, weakness, pale skin, pins and needles, a sore tongue and cognitive difficulties such as brain fog or memory problems
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