effects of cranberry juice
home vitamins, herbs, dietary supplements a-z list cranberry. Cranberries contain certain chemicals that prevent bacteria from growing in the urinary tract. Cranberry is safe for most people, but drinking too much cranberry juice can cause some side effects such as mild stomach upset and diarrhea.Drinking more than 1 liter per day for a long period of time might increase the chance of getting kidney stones. Some cranberry juice products are sweetened with extra sugar.ranberry is safe for most people, but drinking too much cranberry juice can cause some side effects such as mild stomach upset and diarrhea.