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Across approximately 900 participants, the adverse event profile was indistinguishable from placebo
You are not alone in this
Too Much B12 and Acne You may have heard that vitamin B12 can cause acne, but that isnt the whole story
If not treated, they can get even worse
Do not rely on an immediate energy boost as proof that treatment is working
Image: Peter Dazeley/Getty Images About the Author Marygrace Taylor, Health Writer About the Reviewer Pieter Cohen, MD, Contributor Disclaimer: As a service to our readers, Harvard Health Publishing provides access to our library of archived content
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