Many pregnant mothers experience elevated blood sugar during pregnancy, and pregnant women with high blood sugar can eat corn. Corn is a medium glycemic index food with a GI of 55 and is rich in dietary fiber, glutathione and magnesium ions. There are also monounsaturated fatty acids, which are good for intestinal motility and excretion, and for the regulation of blood sugar and blood lipids in the body. The magnesium ion in corn is very effective in increasing insulin and can lower blood sugar. In addition, there are monounsaturated fatty acids, which can regulate the blood lipids of patients. Glutathione can destroy insulin free radicals, which can likewise play a very good role in regulating blood sugar in diabetic patients, as well as in pregnant women with elevated blood sugar. Therefore, pregnant women with high blood sugar can eat corn, but they should not eat too much at one time, as the amount of staple food, it is recommended to consume about 100g a day. In addition, in the choice of corn, it is recommended that pregnant women with high blood sugar do not choose sweet corn with very high sugar content, but try to choose glutinous corn with not very high sugar content, which may play a better role in blood sugar control.