Vitamin C
Commonly used for
EnergyImmunityHealthy Aging
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What is it? / Overview
Wellness uses some people report: antiviral support. This is anecdotal, and there isn't strong clinical evidence that it works for everyone. Vitamin C is required for collagen production, wound healing, antioxidant defense, and immune function. Supplementation is most useful when dietary intake is inadequate or requirements are increased.
How is it used? / Administration
Form: Ascorbic acid
Typical dose studied: 250–500 mg/day; higher doses provide little additional benefit for healthy adults
Timing: With or without food; divide if GI upset
Whole fruits and vegetables remain the preferred source. Divide larger doses if GI upset occurs.
What does it pair with?
Pairs well with:
Often combined, but neither requires the other — Both have independent roles; no established absorption dependency between zinc and vitamin C.
How well does it work? / Evidence
✓ Well-established
Who should avoid it?
Avoid with: Kidney stones / Nephrolithiasis
Interacts with: High doses may affect some lab tests; may increase iron absorption
Already taking it? Avoid routine megadoses > 2,000 mg/day.
Research & references
NIH ODS: Vitamin C Fact Sheet. Carr AC, Maggini S. Vitamin C and Immune Function. EFSA Scientific Opinion on Vitamin C.
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