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Mild dizziness or lightheadedness, especially if youre sensitive to injections or havent had one in a while
If you take B12 tablets or sublingual supplements, you might feel small changes in a week or two
This allows oral megadoses (e.g., 1,000 g or more daily) to raise serum B levels even in individuals with pernicious anemia or low stomach acid
Frequently Asked Questions What are peptides
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