NutriVouch
Confidence level
Strong evidence
715 studies

Vitamin C

Last reviewed: 3/2/2026

Share:
Absorption
Best absorbed in divided doses throughout the day. Avoid taking with calcium supplements.
Daily Dose
Common dose: 500–1,000 mg daily
RDA: 90 mg for men, 75 mg for women
Upper limit: 2,000 mg
Best form: Ascorbic acid preferred, sodium ascorbate as a buffered option
Timing: Can be taken at any time, but consistent daily intake is beneficial.
High doses can cause gastrointestinal discomfort. Individuals with certain conditions should consider their intake carefully.
Food Sources
  • Red bell pepper127mg per 100g
  • Orange53mg per fruit
  • Kiwi93mg per 100g
  • Broccoli89mg per 100g

Not medical advice