The reason is:
1. The main component of steamed bread is wheat, which contains 57% ~ 75% starch, and protein, fat, vitamins and minerals account for a few. The main ingredient of porridge and cooking is rice, which contains 62% ~ 86% starch and a small amount of protein, lipids and vitamins.
2. When only steamed bread, rice and porridge are used as food, a lot of oil and sugar are not consumed.
3. The main ingredient of steamed bread and white rice is starch, which can make you feel full, so the calories you consume when you are full are not high, and you can lose weight if you persist for a long time.
Please note:
1. Eating steamed bread and rice for a long time, with single nutrient intake and insufficient protein, can not meet the normal needs of human body, which may cause malnutrition.
2. For teenagers who are growing and developing, it may cause growth retardation, anemia and other bad conditions.
Suggestion:
1, increase the intake of protein, such as eggs, milk,
2. Use some low-calorie fruits to supplement various vitamins, such as apples, oranges and pears.
3. Control the intake of oil, salt and sugar.
4. Keep exercising, and you will definitely lose weight healthily without rebounding.