Actually, you should not eat broad beans as they can cause destruction of RBCs, just as certain chemicals and drugs can. It is the premature destruction of RBCs, hemolysis, that causes the excess bilirubin that causes skin and eyes to yellow and gallstones to form. We often hear from thal minors who have some yellowing and some gallbladder issues, but yours are worse than normal for a minor. However, some minors do get an enlarged spleen and gallstones from the high rate of hemolysis. If your doctor wants to remove your gallbladder for your safety, then it should be done. The surgery is very common and is usually done using 4 small holes, rather than a cut. Talk to your doctor. If the doctor thinks you could be in danger from the gallbladder, you should have it removed. It will not increase your chances of catching malaria. If it isn't urgent to remove the gallbladder, vitamin C and natural vitamin E can help to prevent gallstones. Eat a diet high in fiber with plenty of fruits and vegetables. A traditional Indian diet is very good because it contains many vegetables and herbs and spices with medicinal properties. You don't get much red met and that is good as fatty meats can also lead to gallstones.