This works as an antioxidant and operates with Vitamin C to stimulate the immune system to fight infection, cancer, and inflammation. The seeds in grapes contain a substance called pyenogenols. This substance has a high degree of antioxidant and fights arthritis, cardiovascular problems, stress, and allergies. The resveratrol in grapes has been the aim of recent research. The University of Illinois says it slows down or stops the growth of tumors.
Studies show it inhibits tumor growth at the initiation, promotion, and progression stages.
France's Liver Research Study Group says resveratrol helps prevent liver cancer by blocking the invasion of tumor cells. Science laboratories report findings that it stops the development of an enzyme linked to breast cancer. The University of Wisconsin's research shows that flavonoids in purple grape juice prevent the thickening of the arteries that hinder the flow of blood to the heart. Research continues to study the properties of grapes in the nation's fight against cancer and heart disease. New York is second in grape production followed by Washington, Michigan, Ohio, Arizona, Arkansas, and Missouri.