Of course, if you eat sweet potatoes, you can also provide energy and a variety of nutrients for the human body. Replacing some staple foods can also ensure the overall nutrition of patients. Therefore, if blood sugar is high during pregnancy, pumpkin, yam and sweet potato can be used to replace some staple foods, which can be beneficial to the nutritional intake of gestational diabetes patients and ensure the relative stability of blood sugar control. Purple potato is a kind of coarse cereals with high starch content, which is very similar to sweet potato, taro and pumpkin. Pregnant women with high blood sugar can eat purple potatoes properly. Purple potato should be eaten as a staple food, one for each meal, and other staple foods should not be eaten. Eating more vegetables and meat will not have much effect on blood sugar. If you take purple potato as the staple food, you will eat other staple foods, such as rice and steamed bread, which will lead to high blood sugar after meals and is a food with high starch content. In the case of high blood sugar, pregnant women should balance nutrition and properly control their diet, mainly referring to foods with high starch content, including rice, steamed bread and purple potatoes. The fruit should also be controlled a little. Foods with high protein content, such as meat, eggs and milk, can be eaten properly and have little effect on blood sugar.