Raspberries and the results of studies on rats
Raspberries contain many vitamins, minerals, plant compounds, and antioxidants known as anthocyanins, all of which may protect against cancer. According to a recent research study reported by Cancer Research, rats fed diets of 5% to 10% black raspberries saw the number of esophageal tumors decrease. Research reported in the journal Nutrition and Cancer in May 2002 shows black raspberries may also thwart colon cancer. Black raspberries are rich in antioxidants and thought to have even more cancer-preventing properties than blueberries and strawberries. Berries are considered good sources of vitamin C, fiber, ellagic acid, and other phytochemicals. The American Institute for Cancer Research (AICR) states that ellagic acid is a phytochemical that has antioxidant powers to decrease carcinogens and slow the reproduction of cancer cells.
Sweet potatoes protect DNA
Sweet Potatoes (Yams) contain many anticancer properties, including beta-carotene, which may protect DNA in the cell nucleus from cancer-causing chemicals outside the nuclear membrane.
The benefits of teas and the connection of the diet of cancer patients
Green tea and black tea contain certain antioxidants known as polyphenols (catechins), which appear to prevent cancer cells from dividing. Green tea is rated as the most effective, followed by the more common black tea; however, herbal teas do not show this benefit. According to a report in the July 2001 issue of the Journal of Cellular Biochemistry, the polyphenols that are abundant in green tea, red wine, and olive oil, may protect against various types of cancer. Dry green tea leaves, which are about 40% polyphenols by weight, may also reduce the risk of cancer of the stomach, lungs, colon, rectum, liver, and pancreas. AICR reports green tea has the highest concentration of catechins, which have shown potential for preventing cancer cell development in laboratory studies. Population studies show that groups of people who consume high amounts of green tea have a lower incidence of bladder, colon, stomach, pancreatic and esophageal cancers.