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Grape expectations: healthwise, grape seed extract offers something for everyone.(SUPPLEMENTS: CLOSE UP)
Grapes are good, and red wine is better. But when it comes to packing a potent antioxidant punch without the calories, sugar or alcohol, grape seed extract is the winner.
"One would have to eat large amounts of grapes or drink two glasses of red wine or grape juice to get effective amounts of the polyphenolic (flavonoid) compounds," says C. Tissa Kappagoda, MD, PhD, director of the Preventive Cardiology Program at University of California, Davis. "Wine and grape juice also contain alcohol, sugar and about 130 calories per six-ounce glass."
How Crape Seed Might Help You With more antioxidant power than vitamins C or E, grape seed extract is full of flavonoids that have cardioprotective, antitumor and anti-inflammatory, anticarcinogenic and antiallergic benefits. case reports and laboratory and animal studies show that the supplement strengthens blood vessels and may protect against cancer, heart disease, viruses and cell damage from drugs, pollution, tobacco and other toxins.
Preliminary evidence shows that oligomeric proanthocyanidins (OPCs), found in grape seed extract and pine bark extracts, can help reduce pain and swelling of the legs in chronic venous insufficiency (related to varicose veins).
Evidence for Grape Extract Here's a quick look at some more health research on grape seed extract:
* Kappagoda conducted a one-month study on 24 men and women with metabolic syndrome, characterized by high blood pressure, elevated cholesterol, insulin resistance and abdominal fat. Those who received grape seed extract saw an average 12-point drop in systolic blood pressure and an eight-point drop in diastolic pressure, along with reduced LDL ("bad") cholesterol levels. And a Georgetown University trial revealed that grape seed extract and chromium, when combined, reduced total and LDL cholesterol.
* A study at City of Hope Medical Center in Duarte, CA, showed that grape seed extract may help protect against breast cancer.
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