Washington (ECN) - Vitamin C has been found to make chemotherapy ineffective.
Vitamin C was always believed to build up your immune system to fight cancer.
Vitamin C has been found to do more harm though than good according to researchers from the Memorial Sloan-Kettering Cancer Center in Pennsylvania
Patients who took vitamin C had 30% to 70% fewer cancer cells killed during treatment.
The study was published in the journal Cancer Research.