A host of mechanisms may be involved including modulation of estrogen metabolism and detoxification reactions. Citrus Fruits . Besides vitamin C, folate and fiber, citrus fruits are rich in limonoids which have been identified as protective against a variety of spontaneous and chemically-induced rodent tumors. Both cranberry and blueberry juices contain compounds which inhibit the adherence of E. coli to uroepithelial cells, and therefore protect against urinary tract infections. Cranberries are also rich in benzoic acid which acidifies the urine.
Tea is second only to water as the most widely consumed beverage in the world.
The polyphenolic compounds in tea are attributed to its protection against cancer, and cardiovascular disease. However epidemiological studies are inconclusive. Although research on laboratory animals more clearly support a cancer chemopreventive effect. Wine and Grapes. The benefit of red wine in reducing the risk of cardiovascular disease is attributed to its content of phenolic compounds.