While drinking pineapple water generally poses no problems for most people, those with certain medical conditions should exercise caution. The acidity of pineapple may cause heartburn or digestive issues for some, and the bromelain it contains may interact with certain medications. It is advisable to consult a doctor or pharmacist if there are any concerns. According to Stefanow, adding fruit infusion to water is a healthier way to enhance flavor than juice, making it difficult to overindulge.