Vitamin C

Vitamin C (ascorbic acid) is an essential micronutrient predominantly found in citrus fruits and vegetables. Its popularity stems from its distinct benefit profile and overall affordability as a supplement. While it is commonly taken as a way to combat the common cold, Vitamin C is a potent antioxidant and an important component of multiple metabolic pathways, including collagen synthesis and hormone production [1].

Breast Cancer: Research indicates that Vitamin C can selectively damage breast cancer cells possessing a particular micronutrient transporter [6] [1].

Lung Cancer: Retrospective research shows that Vitamin C, when combined with chemotherapy, improved outcomes in patients undergoing lung cancer treatment [7]. 

Colorectal Cancer: Investigations suggest that Vitamin C is able to selectively kill colorectal cancer cells possessing certain mutations [8].

Pancreatic Cancer: Studies have shown that high-dose Vitamin C, when used alongside chemotherapy, can improve quality of life and potentially enhance treatment outcomes in pancreatic cancer patients [9].

• Increased Sensitivity to Chemotherapy: Studies suggest that Vitamin C may sensitize cancer cells to chemotherapy drugs, potentially improving treatment outcomes [5].
• Synergy with Radiation Therapy: Vitamin C's pro-oxidant effects might enhance the sensitivity of cancer cells to radiation therapy, increasing the effectiveness of treatment.