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If uncertain whether symptoms are peptide-related, stopping for two weeks provides clarity
you need to get it from food or oral supplements
Neurologic aspects of cobalamin (B12) deficiency
Vitamin B12 deficiency symptoms Weakness, tiredness, or lightheadedness Heart palpitations and shortness of breath Pale skin A painful, smooth, inflamed tongue (glossitis) Digestive issues Bluish or gray-brown nails Loss of appetite What happens if your vitamin B12 deficiency is left untreated
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