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  1. Nature Made Extra Strength Vitamin C 1000 mg, Dietary ...

  2. C-1000 - Uses, Side Effects, and More - WebMD

  3. How Much Vitamin C Do You Need Per Day? - Verywell Health

  4. Vitamin C - Mayo Clinic

  5. Amazon.com: Vitamin C 1000

  6. Amazon.com: Vitamin C 1000mg

  7. C-1000 With Rose Hips - Uses, Side Effects, and More - WebMD

  8. Vitamin C Extra Strength 1000 mg Tablets - Nature Made®

  9. Nature Made Extra Strength Dosage Chewable Vitamin C ... - Target

  10. Vitamin C: Benefits, Side Effects, Dosage, Interactions