This medical video is about the extensive research that berries may be the most potent cancer fighting fruits.
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Jennifer Matthews: It's a typical morning for Dan Harris. The kids are ready for school, and he's making his morning shake. Dan Harris: Every single day during the morning -- you know between 7 and 9 we just come down, and it's becoming a habit. It's almost like an extra part of breakfast. Jennifer Matthews: Dan is part of a study to test whether black raspberries can slow or prevent certain types of cancer. Dan has Barrett's Esophagus, a condition where pre-cancerous growths line the esophagus and can potentially turn into cancer. Dan Harris: It is kind-of like drinking a packet of seeds. Jennifer Matthews: Each shake is 45 grams of freeze-dried black raspberries equal to one pound of whole berries. Dr. Gary Stoner: These are actually black raspberries that have been formulated into these lozenges or this particular sucker. Jennifer Matthews: Ohio State cancer researcher Gary Stoner says different berry variations are being tested on oral and colon cancer patients. They're also being tested on those at risk. Early studies show the berries slows tumor growth and can significantly reduce cancer risk altogether. Dr. Gary Stoner: We do know from epidemiologic studies that vegetable and fruit consumption is protective against cancer, and from our work, we would suggest that berries be one of those helpings, at least two or three times a week. Jennifer Matthews: For Dan, it's every day, but he hopes that will just give him a little extra protection. This is Jennifer Matthews reporting.