Vitamin C Calculator
Supplement DosageCalculate your optimal Vitamin C intake for immune support
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Vitamin C Calculator
Calculate your optimal daily Vitamin C intake for immune support and overall health
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mg per day
Recommended Vitamin C Intake
RDA Baseline
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Lifestyle Adjustment
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Upper Safe Limit
2,000 mg
Top Vitamin C Food Sources
Red Bell Pepper
1/2 cup raw
Orange
1 medium
Broccoli
1/2 cup cooked
Strawberries
1/2 cup
Kiwi
1 medium
Brussels Sprouts
1/2 cup cooked
Vitamin C Tips
- Split doses throughout the day for better absorption
- Take with meals to reduce stomach upset
- Vitamin C enhances iron absorption - take together if iron-deficient
- Heat destroys Vitamin C - eat fruits and veggies raw when possible
- Excess Vitamin C is excreted in urine - toxicity is rare
Disclaimer: This calculator provides general guidance based on NIH recommendations.
Individual needs may vary. Consult a healthcare provider before starting any supplement regimen,
especially if you have kidney disease or iron overload conditions.
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Vitamin C
Optimize immune and antioxidant support.