Vitamin C vs Vitamin D
The Bottom Line
Both Vitamin C and Vitamin D have been researched for 1 condition in common, backed by 35 and 53 studies. See the head-to-head comparison below.
35
Vitamin C studies
53
Vitamin D studies
Shared Conditions
| Condition | Vitamin C | Vitamin D | Winner |
|---|---|---|---|
| Upper Respiratory Tract Infections | B | A | Vitamin D |
Unique to Vitamin C
Exercise-Induced Immune Suppression
Unique to Vitamin D
Autoimmune Conditions
Immune Aging (Immunosenescence)
Can They Be Combined?
Vitamin C and Vitamin D are generally safe to take together. Consult your healthcare provider for personalized advice.
Individual Profiles
Related Comparisons
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products and information on this website are not intended to diagnose, treat, cure, or prevent any disease. The evidence grades presented are based on our analysis of published peer-reviewed research and do not constitute medical advice. Always consult your healthcare provider before starting any supplement regimen.