Orange juice has a high content of vitamin C and has always been a favorite fruit of many people. But for women, eating more oranges has an unexpected benefit, which is to reduce the incidence of gallstones. It is because estrogen can make cholesterol accumulate more in bile, leading to high cholesterol concentration and the formation of stones. Oranges will play an obvious role in reducing the occurrence of gallstones. Because vitamin C in oranges can inhibit the conversion of cholesterol into bile acids in the liver, so that the concentration of cholesterol in bile is reduced, and the chance of their aggregation to form gallstones is correspondingly reduced. In addition, pectin contained in orange peel can also promote food to pass through gastrointestinal tract, so that cholesterol can be excreted with feces more quickly, thus reducing the absorption of cholesterol.