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Where is vitamin C found?

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Vitamin C is found naturally in vegetables and fruits, especially oranges and other citrus fruits. This key vitamin is also available as a natural dietary supplement in the form of vitamin C pills and vitamin C chewable tablets.

SOURCES:
National Institute of Allergy and Infectious Diseases: "Common Cold."
PubMed: "Intake of Vitamin C and Zinc and Risk of Common Cold: A Cohort Study."
Mayo Clinic: "Cold Remedies: What Works, What Doesn't, What Can't Hurt."
Medscape: "Vitamin C May be Effective Against Common Cold. Primarily in Special Populations."
Douglas, R.M. The Cochrane Collaboration, 2007.
UptoDate: "The common cold in adults: Treatment and Prevention."
Medline Plus: "Flu" and "Common Cold."

National Institutes of Health.
 

Reviewed by Jennifer Robinson on May 13, 2019

SOURCES:
National Institute of Allergy and Infectious Diseases: "Common Cold."
PubMed: "Intake of Vitamin C and Zinc and Risk of Common Cold: A Cohort Study."
Mayo Clinic: "Cold Remedies: What Works, What Doesn't, What Can't Hurt."
Medscape: "Vitamin C May be Effective Against Common Cold. Primarily in Special Populations."
Douglas, R.M. The Cochrane Collaboration, 2007.
UptoDate: "The common cold in adults: Treatment and Prevention."
Medline Plus: "Flu" and "Common Cold."

National Institutes of Health.
 

Reviewed by Jennifer Robinson on May 13, 2019

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Does vitamin C treat or prevent colds?

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