Because eggs are high in calories. The reason for the high calorie in the salted egg ingredient list is that the calorie of salted eggs is about 233 kcal/100g. Salted eggs are just a way of heating, which has little effect on eggs. There is no difference in nutritional value between salted eggs and ordinary eggs.
Salted eggs are high-calorie foods. Eating too much salted eggs may cause symptoms such as getting angry or indigestion, so pay attention to the right amount when eating.