Common side effects of drinking beet juice include vocal cord problems, kidney stones, Beeturia, fever, chills and rashes, notes WebMD. Nutritionists recommend mixing beet juice with other fruit and vegetable juices to minimize negative side effects while still getting the health benefits of beet juice.
The most serious concern with adding beet juice to the diet is kidney stones, according to WebMD. Doctors recommend that people who have had kidney stones in the past not drink beet juice. Beeturia is a pink or red coloration of the stool and is not dangerous, though it can be frightening. Fever, chills and rashes are rare but might be an indicator of an allergy. If experiencing the symptoms, it is important to talk to your doctor or nutritionist before continuing to drink beet juice.