A new study published in PLOS ONE concluded that grape seed extracts can increase the effectiveness of chemotherapy and reduce it’s side effects in bowel cancer. The authors said “This is the first study showing that grape seed can enhance the potency of one of the major chemotherapy drugs in its action against colon cancer cells.,” They further said “Our research also showed that in laboratory studies grape seed taken orally significantly reduced inflammation and tissue damage caused by chemotherapy in the small intestine, and had no harmful effects on non-cancerous cells. Unlike chemotherapy, grape seed appears to selectively act on cancer cells and leave healthy cells almost unaffected.”
Researchers showed that grape seed extract had no side effects on healthy intestine at concentrations of up to 1000mg/kg and significantly decreased intestinal damage compared to the chemotherapy control,. They also showed that it decreased chemotherapy-induced inflammation by up to 55%, and increased growth-inhibiting effects of chemotherapy on colon cancer cells in culture by 26%, Further research is planned.