For vegetables, spinach, which is rich in oxalic acid, has little effect on gallbladder stones if the patient consumes it for a long time. The main cause of gallbladder stones is that patients eat too much food with high cholesterol content, such as egg yolk and animal offal, including animal fat and other foods with high cholesterol content, causing hypercholesterolemia in the body and further causing gallbladder stones, intrahepatic bile duct stones and common bile duct stones to occur. For patients with urinary stones, the oxalic acid in spinach may cause oxalate stones to form. The actual fact is that you can find a lot of people who have been in the business for a long time.