In the report, Shiuan Chen, a PhD from the Beckman Research Institute of the City of Hope, grape juice found the successful growth of cancer cells by preventing the hormone estrogen Sintesa a large role in the development of breast cancer.
Through laboratory tests, grape juice proved able to stop the production of hormones estrogen in the cells. Recent research using rats showed that the tumor cells showed that mice given 0.5 ml grape juice for five weeks, the size cancer only a third of the mice not given the grape juice.

While the research years ago showed that extracts of red wine (not white wine) contains the same compound with a compound that is in the grape juice that can press the formation of estrogen.
Red wine known to have Phenol compound content higher than white wine. Phenol has the effect cardioprotektif (flavonoid), which is an antioxidant that is very strong. Flavonoid can prevent LDL oxidation 20 times stronger than vitamin E. Compound the effects have proved a very biologically as a strong antioxidant, hamper conglomeration chip-chip blood cells, stimulate the production of oxidation Nitrite, which can dilate blood vessels and also hamper the growth of cancer cells. At the time of fermentation of red wine, a flavonoid compound complex is so easy to unravel the body rather than absorbed in the form of fresh fruit. The existence of alcohol (10 percent) in the flavonoid content of the wine to make stable.

According to research Agricultural Research Service, U.S. Department of Agriculture, the second compound contained in the wine is quite promising for preventing cancer. The study was conducted by Agnes Rimando of the Natural Products Utilization Research Unit, Oxford, Mississippi.

Rimando in the research report that a compound called pterostilbene (terro-STILL-bien) have the ability to prevent cancer is the same with those found in resveratrol, another compound in the vineyards. Pterostilbene also shows the power resistor strong against breast cancer in the cells. However, this must be examined further and tried to humans. Fred Wortman see the experience of Georgia, which has been trying to grape juice to treat bowel cancer. Experience is published in the media Independence. He explained that the treatment is done by drinking grape juice 24 oz (dark Concord) in the morning. Do not eat anything until noon. Drinking several draft every 10 to 15 minutes. After a 12 hour day, eat as usual. But not eating anything after 8 o'clock at night. Because the food can eliminate oxygen-effective substances contained in the wine. He did this every day until about two weeks in a month. Treatment with dark Concord grapes is reported almost 100 percent effective.

Previously, red wine is suspected to prevent coronary heart disease. This is possible because the content flavonoidnya. In France, the number of people with coronary heart smaller than other European countries or the United States, when they consume fat and smoking more and move less. The researchers it to the habits of people who love the French red wine.