Cranberries are a nutritious berry grown in the northeast US and Canada. Cranberries have been eaten as a food for centuries. Cranberries are rich in antioxidants1 and compounds that benefit urinary tract health. 2
Most people who use cranberry supplements do so for urinary tract health, especially with respect to recurrent bacterial urinary tract infections. It is though that cranberry contains compounds that inhibit pathogenic bacteria from adhering to urinary tract surfaces. 3
Use as directed.
Cranberry supplements are safe and have few side-effects, even for pregnant or lactating women according to one study.4
References: 1. J Agric Food Chem. 2008 Jun 18. 2. Phytomedicine. 2007 Apr;14(4):237-41. Epub 2007 Feb 12. 3. Clin Microbiol Infect. 2008 Apr;14(4):350-5. Epub 2008 Jan 7. 4.Can J Clin Pharmacol. 2008 Winter;15(1):e80-6. Epub 2008 Jan 18.