What is it?
North American berry from the same plant family as bilberry and blueberry.
Why use it?
To reduce or prevent the occurrence of urinary tract infection (UTI).
What’s the research?
A 2007 review concluded that "cranberry fruits are effective not only in the prevention of urinary tract infection [due to inhibiting the adherence of bacteria to the bladder wall] but also for the prevention of oxidative stress." A 2008 review of research determined that cranberry was safe and effective for use during pregnancy.