An egg is about 60 grams and has about 76 calories. To make a steamed egg custard, you need eggs 1 piece, salt 1 gram, chopped green onion, 3-5g of vegetable oil (without oil) and 200ml of water. The calorie of a bowl of custard = egg+salt+vegetable oil+chopped green onion, which is about 100 calories. Therefore, the egg custard is not high in calories, similar to rice, and will not get fat after eating it.

However, custard is not fat and should not be eaten more. Nutritionists suggest eating only one egg a day, because eating too much can't be absorbed by the body and it is easy to cause high cholesterol.