Another fruit that contains tannins are blueberries. The researchers found that drinking 50 to 100 milliliters per day of cranberry juice helped prevent urinary tract infections, while the probiotics did not. The study was presented at this year s meeting of the Infectious Disease Society of America . The study, published in the Journal of the American Dental Association , showed that cranberry juice with a constituency of 0.6 to 2.5 milligrams per milliliter reversed adhesion of more than half of the bacteria tested. However, the researchers warned against using cranberry juice in oral hygiene, because of the high sugar content in most cranberry juices available.
Further research is needed involving animal studies and clinical studies.
The juice was tested on several bacterial strains, including Staphylococcus aureus and Salmonella enteritidis. Current studies are underway to evaluate the active ingredients in cranberry juice. Some cranberry juices are high in sugar water, and may be called cranberry drink or cocktail. However, cranberry juice that contains 100 percent juice may be too tart for most people. For more information on this, consult your physician, or Ask A Nurse .