Patients with cholecystitis can eat tomatoes. The root cause of cholecystitis is gallstones, caused by an imbalance in the dissolution of cholesterol and bile acids. Tomatoes can be either a vegetable or a fruit, rich in vitamin C, and will not cause bacterial infections in the gastrointestinal tract or an imbalance in the dissolution of bile acids and cholesterol. The vast majority of gallbladder infections are caused by mechanical inflammation of the gallbladder wall caused by gallbladder stones or bacterial inflammation secondary to infection, which can cause pain and discomfort in the right upper abdomen or fullness and discomfort in the upper abdomen, with or without radiating pain in the right scapula.