Garden-variety berries provide about the same cancer-fighting punch as more exotic ones, a study of rats with esophageal cancer shows. A separate study finds a potentially protective effect against breast cancer as well.
Cancer biologist Gary Stoner of Ohio State University in Columbus and his colleagues tested seven berry types against cancer of the esophagus in rats —black raspberries, red raspberries, blueberries, strawberries, noni berries, açai berries and wolfberries (also called goji berries).
The scientists injected the animals with a carcinogenic chemical and gave some of the rats normal food, while others got similar chow containing 5 percent of one of the berries in dehydrated form.
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