Pregnant women with diabetes must calculate the total calorie intake every day. If they eat too much fruit, they should reduce the staple food accordingly to ensure that the total calorie intake throughout the day does not exceed the standard. But you can't use fruit instead of staple food, because staple food belongs to complex carbohydrates, which won't raise blood sugar quickly in a short time, while fruit is just the opposite. The timing of eating fruit is also very important. It is best to eat it between meals, so that blood sugar will not be too high and hypoglycemia can be prevented.
Eating too many high-fat foods such as nuts during pregnancy is also very harmful to health. This kind of food is high in calories, which will also lead to an increase in blood sugar.