Evidence-based

Plasma Vitamin C

•Last Updated: October 13, 2024

Vitamin C is a water-soluble vitamin found in some fruits (most notably, citrus fruits) and vegetables. “Plasma vitamin C” refers to the amount of vitamin C in the blood.

Last Updated:October 13, 2024

Research Snapshot

662 participants in 15 trials

Examine Evidence Grades

AVitamin C

C3 outcomes

D1 outcome

Examine Database: Plasma Vitamin C

Intervention	Grade	Evidence	Effect
Vitamin C	A	Participants: 428	Large Increase
Grape Juice	C	Participants: 40	Small Increase
Astaxanthin	D	Participants: 20	No effect
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Spirulina		Participants: 30
Coenzyme Q10		Participants: 144

Vitamin C

Large Increase

Grape Juice

Small Increase

Astaxanthin

No effect

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Spirulina

Coenzyme Q10

Plasma Vitamin C

Examine Database: Plasma Vitamin C

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Examine Database References