Vitamin c for immune support
Evidence review
How Much Does Vitamin C Support Immune Function?
Vitamin C at doses of 200 mg daily has been shown to reduce the duration of colds by 8% in adults and 14% in children.
How Does Vitamin C Work in the Body?
Vitamin C acts as an antioxidant and is essential for the function of various immune cells, enhancing their ability to combat pathogens.
What is the Recommended Vitamin C Dosage Protocol?
| Phase | Dosage | Duration | Clinical Notes |
|---|---|---|---|
| Maintenance | 200–1000 mg/day | Ongoing | Higher doses may be used during illness. |
Clinical Contraindications and Renal Clearance Interactions
Evidence-Based Product Evaluation: Which Vitamin C to Buy?
A high-quality vitamin C supplement should provide 200–1000 mg of ascorbic acid, ideally in a buffered form to reduce gastrointestinal discomfort, and verified by independent third-party testing.
FAQ
Q: Does vitamin C cause gastrointestinal upset?
A: High doses of vitamin C can cause gastrointestinal discomfort in some individuals, particularly when taken in excess of 2000 mg/day.
Q: How long does vitamin C take to work for immune support?
A: Vitamin C may begin to enhance immune function within a few days of consistent supplementation.
Q: Can vitamin C be taken with other medications?
A: Interaction data is insufficient, but high doses may affect the absorption of certain medications, so consulting a healthcare provider is recommended.
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