Side effects and watch-outs
- GI upset and diarrhoea above 2g/day in most people
- Kidney stone risk (oxalate) with very high chronic doses in predisposed individuals
- Nausea
- Reduces iron absorption timing — take away from iron supplements
Supplement / Vitamins
Vitamin C (Ascorbic Acid)
Essential antioxidant vitamin. Collagen synthesis, immune function, iron absorption. May modestly reduce cortisol post-exercise. IV mega-dosing studied in cancer supportive care.
Educational reference only. This page does not diagnose, prescribe, or replace care from a licensed professional. Laws, availability, and clinical appropriateness vary by location.