Vitamin C
Vitamin C is a potent antioxidant that supports immune function, collagen production, and iron absorption. It is water-soluble, so excess is excreted in the urine.
What is it for?
Reduces duration of colds
Potent antioxidant that protects against cellular oxidative damage and supports collagen production.
Essential for collagen synthesis
Fundamental antioxidant
Antioxidant that protects DNA from oxidative damage. Epidemiological evidence supports adequate intake.
Reduces histamine levels. 1-2g/day during allergy season
💡 Absorption: Splitting the dose throughout the day improves absorption. The liposomal form has greater bioavailability.
⚠️ Caution: Doses above 2000mg/day may cause digestive discomfort. Caution in people prone to kidney stones. In those under 18, use only under medical/pediatric supervision.
Recommended doses
Range: 250 – 1000 mg
Split into 2 doses
Range: 500 – 2000 mg
Increase during periods of illness
Interactions with other supplements
⚕️ Medication interactions
High doses of vitamin C (>1g/day) can interfere with the action of oral anticoagulants and alter the INR.
→ No superar 500mg/día sin supervisión médica. Monitorizar INR al cambiar la dosis de vitamina C.
📚 Scientific references (3)▼
Meta-analisis reciente de Hemila. Dosis de 1-2g/dia reducen significativamente la severidad de los sintomas del resfriado comun.
Revision sobre el papel de la vitamina C en inmunidad innata y adaptativa. Apoya la funcion de barrera epitelial y la actividad de celulas inmunes.
Meta-analisis Cochrane (29 ensayos, 11,306 participantes). 200mg+/dia no previene resfriados en poblacion general pero reduce duracion un 8% en adultos.
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