Vitamin C is an essential nutrient that the body needs, and it plays a keyrole in making collagen. Vitamin C also is an antioxident. Researchers have studied high-dose vitamin C as a complementary treatment therapy for cancer patients since the 1970s. Both preclinical (laboratory or animal) and clinical trials have been conducted using high-dose vitamin C in cancer treatment.
The benefits of high-dose vitamin C have shown include:
- Slowed or blocking the growth and spread of certain types of cancer cells
- Improved quality of life
- Improved physical, mental, and emotional functions
- Reduced symptoms of fatigue, pain, loss of appetite, and nausea and vomiting.
High-dose vitamin C is usually given intravenously (IV). The FDA has not approved high-dose vitamin C for treatment in cancer or other conditions.