LYCOS RETRIEVER 
Cranberries: Studies
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Numerous studies have established the benefits of cranberries for supporting urinary health. Recently researchers have ... shown that cranberries help to raise HDL (“good cholesterol”) blood levels and increase plasma antioxidant levels, both important factors for reducing the risk of heart disease. Now new laboratory findings suggest that cranberries are particularly effective in aiding recovery from stroke, especially during early stages when severe cellular damage occurs.
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[C]ranberries' anti-adhering properties are helpful for much more than your urinary tract. A study published in the October 2004 issue of the Journal of Science, Food and Agriculture found that an antiviral compound in cranberries called proanthocyanidin A-1 inhibits the herpes virus from attaching to and penetrating the genitals.
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"In light of our findings and previously published studies, cranberries may inhibit the spread of cancer in a variety of ways," said Neto. "Further research is needed to determine the mechanisms associated with each of the cranberry's active phytochemicals."
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Research at three other universities shows that cranberries decrease levels of total cholesterol and LDL, or bad cholesterol, in animals. Studies are under way to see if the high level of antioxidants in cranberries ... protects against atherosclerosis.
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Studies have found that cranberries reduce the risk of heart disease. Most recently, a study presented at the annual congress of the International Union of Physiological Sciences in March/April 2005 found that pigs with atherosclerosis (a primary causes of heart disease) that received a daily dose of cranberry powder had restored blood vessel health.
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Researchers think cranberries' polyphenols are responsible for their cardiovascular benefits. While humans would need to eat four to eight servings of cranberry powder, or 10-20 servings of cranberry juice, in order to achieve the levels of polyphenols given the animals in the study, co-author Jess Reed said: "The point to be emphasized is that total polyphenol intake is very low in western diets and a diet rich in polyphenols would in fact give a daily intake that is equivalent to the levels in our cranberry feeding experiments."
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