Do acidic foods bother your bladder? The acid in those foods may be giving you all that trouble. eTrigger Foodse include coffee, fruits and juices, tomato sauce, wine and many others whose acidity is often not immediately obvious until the effects are felt. Prelief is the only product that takes out food acid as you eat and stops the foods from causing painful symptoms.Country of origin : USAGluten Free : YesYeast Free : YesSize : 300 CAPPack of : 1Product Selling Unit : each