1, the harm of losing weight in adolescence
1. Affect menstrual cramps
Dieting and losing weight have a great influence on girls. Because there is no diet plan, just blindly starving and insufficient nutrient intake will disrupt the normal endocrine system of the body. Adolescent girls themselves are in the development period of reproductive endocrine system, blindly dieting to lose weight and taking too little body fat will lead to less menstrual flow or even amenorrhea, menstrual pain, menstrual disorder and other symptoms.
2. Affect height development
Adolescence is also a long and exciting period. Besides childhood, adolescence is the fastest growing period of human height. At this time, a lot of nutrients are needed to promote metabolism, replenish energy and promote the secretion of growth hormone. Dieting will only lead to various nutritional deficiencies, further affecting height.
3. Affect the development of secondary sexual characteristics
During adolescence, the secretion of sex hormones is exuberant, and the body gradually begins to appear secondary sexual characteristics, which means that the body begins to mature, excessive dieting and weight loss, and insufficient nutritional supplements will lead to endocrine disorders and affect the normal development of secondary sexual characteristics.
4. Affect IQ development
When dieting to lose weight, they usually eat fruits and vegetables, and seldom eat meat, which will lead to the lack of nutrients such as minerals and protein. It is found that girls' long-term dieting will lead to anemia, slow growth and development, and limited IQ development, which will affect their learning and thinking ability.
5. The rebound is serious
Dieting and losing weight in adolescence may have some effect, but after applying a normal diet, adipocytes will recover their original elasticity, accelerate their expansion, increase their fat absorption rate and rebound seriously because they have been suppressed for a long time.
6. Insufficient nutrition
(1) During adolescence, the human body is full of vitality, and the nutritional needs of the body increase, which not only meets the needs of growth and development, but also meets the needs of study and life. Dieting will lead to insufficient intake of various nutrients, which will lead to physical diseases.
(2) Insufficient intake of protein will lead to stunted growth, decreased resistance, impaired intellectual development, and severe malnutrition, edema and endocrine disorders.
(3) Various vitamins can cause vitamin deficiency in families, and vitamin b2 deficiency can lead to beriberi; Vitamin c deficiency can lead to scurvy; Vitamin d deficiency can cause abnormal bone metabolism, short stature or bone deformation; Vitamin A deficiency can lead to night blindness.
(4) Insufficient intake of various inorganic salts and trace elements will affect the development of bones and gonads and hinder the normal growth of the body.
2, diet taboos to lose weight
1, all western food: Although there are many dishes, each dish only takes up a corner of the big plate, but the heat of western food is more amazing than that of Chinese food. An onion appetizer can have up to 800 calories, not to mention steak.
2. Disguised food: Many foods are characterized by health, but in fact they don't have much nutrition, such as various fruit drinks, vegetable biscuits and children's fruit desserts.
3. Big hamburger: increase the hamburger, double beef patties, and keep the price unchanged-can it really take advantage? The calories of a Big Mac can be as high as 1520 calories, which is all the calories a middle-aged woman needs in a day. Give up what she loves.
4. Stuffed bread: Bread itself is rich in nutrition, but it is different from chocolate, fruit and cream stuffing. Not only has sugar and calories doubled, but nutrition is also pitiful. Therefore, choosing the original whole wheat bread is a good performance for yourself.
5, a small cake with high calories: The cake doesn't seem to have so much fat and calories, but all kinds of high-calorie raw materials are added during the processing. Never let children get into the habit of eating cakes.
6, milk coffee: a cup of ordinary Starbucks white coffee is equivalent to two or two staple foods. But it's not the coffee's fault. Its calories are actually very low. If you like coffee, you'd better "slim down" it and choose a low-fat type without sugar and cream.
7. Food aroma in the supermarket: It is easiest to get hungry when shopping, and then being attracted by the aroma of snacks and meat products in the supermarket will make people eat twice as much at the next meal. Bring water and low-calorie biscuits when shopping, because you can't resist the temptation of food and avoid overeating.
8. Hard-to-refuse food around: There are more and more delicious foods, such as hamburgers, French fries, salads, barbecues, pizzas and desserts. When people are keen on new eating habits, they ignore the most fundamental sources of health: fruits and vegetables. These natural foods are the source of health.
9. Fried food: All fried food should be eaten less. Don't think that frying vegetables and bean products will be healthy. They also contain a lot of fat and should be removed from your menu.