High dose vitamin C therapy involves taking vitamin C (ascorbic acid) in quantities significantly above the daily recommended intake. It's used for various health purposes, both as an oral supplement and intravenously. The intravenous route allows for much higher doses than what can be taken orally without causing digestive distress.
Key aspects of high dose vitamin C therapy include:
- Antioxidant Properties: Vitamin C is a well-known antioxidant that may help protect cells from damage by free radicals.
- Immune System Support: It is thought to support the immune system. High doses of vitamin C are often marketed for their potential to prevent or treat colds, though scientific evidence for these uses is mixed.
- Cancer Treatment: Some studies suggest high doses of intravenous vitamin C may help improve quality of life and symptoms in cancer patients, but it is not widely accepted as a standard cancer treatment. Research is ongoing to determine its effectiveness and safety.
- Cardiovascular Health: There are claims that high doses of vitamin C can benefit cardiovascular health, but again, evidence is mixed and more research is needed.
- Risks and Side Effects: Possible side effects of high dose vitamin C therapy can include kidney stones (especially from high oral doses), increased iron absorption, gastrointestinal disturbances, and in rare cases, damage to body tissues.
- Evidence and Acceptance: While some alternative medicine practitioners advocate for high dose vitamin C therapy, many conventional medical practitioners remain skeptical due to inconsistent results from research studies. The consensus among experts is that more evidence is needed to support high dose vitamin C as a primary treatment for serious diseases.
It's important for patients to consult with healthcare professionals before starting high dose vitamin C therapy, particularly because it can interact with other medications and underlying health conditions.