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  1. Myths and truths about vitamin C - Harvard Health

  2. 5 Ways Vitamin C Keeps You Healthy - Cleveland Clinic Health ...

  3. Too much vitamin C: Is it harmful? - Mayo Clinic

  4. Vitamin C - Mayo Clinic

  5. Vitamin C - The Nutrition Source

  6. What Happen s When You Take Vitamin C Every Day - EatingWell

  7. Vitamin C: What You Need to Know - Healthline

  8. Mayo Clinic Q and A: Does vitamin C help us when we’re sick?

  9. Vitamin C Benefits, Sources, Supplements, & More - WebMD

  10. Vitamin C: Facts, Benefits & More | U.S. News - US News Health