Side Effects and Cautions

• Eating cranberry products in food amounts appears to be safe, but drinking excessive amounts of juice could cause gastrointestinal upset or diarrhea.
• People who think they have a urinary tract infection should see a health care provider for proper diagnosis and treatment. Cranberry products should not be used to treat infection.
• It is important to inform your health care providers about any herb or dietary supplement you are using, including cranberry. This helps to ensure safe and coordinated care.