Women's weight loss Q&A and Children's weight loss tips

"Fat" has become a taboo word for many young women. They'll be upset if anyone calls them "fat," no matter the occasion. To lose weight and prevent obesity, many young women resort to dieting. They try to eat as little as possible and avoid greasy foods. But is this the right approach?

From the perspective of health and adolescent development, this method is simply not advisable. Relying solely on diet control not only makes it difficult to prevent weight gain but also leads to malnutrition and a series of health problems. From the perspective of modern aesthetics, simply being slim does not equate to beauty. A crucial indicator of beauty in young women is health, or what is commonly referred to as "fitness and beauty." Without health as a prerequisite, beauty cannot be discussed.

Scientific research has proven that for teenage girls, a body fat percentage of over 17% of body weight is considered normal. A normal body fat percentage is essential for normal physiological functions and sexual development. If body fat percentage is below 17%, the onset of menstruation will be affected; after menstruation, if body fat percentage is below 20%–22%, a regular menstrual cycle cannot be maintained; too little body fat can also affect vital functions and lead to endocrine disorders. Furthermore, a major drawback of having a body fat percentage below the normal standard is impaired nutrient absorption. Some fat-soluble vitamins, such as A, D, E, K, and beta-carotene, require fat for absorption. A lack of body fat directly affects the absorption of these vitamins, leading to serious nutritional deficiencies in the long term, resulting in reduced or insufficient estrogen secretion. Mild cases may result in delayed menstruation and irregular menstruation; severe cases may lead to dysmenorrhea, amenorrhea, or even dysfunctional uterine bleeding. Even more seriously, some teenage girls develop anorexia due to excessive dietary control and long-term vegetarianism. This disease is common in the United States, and it is very difficult to correct, posing a great threat to health.

Losing weight does not mean you don't need to lose fat.

In fact, fat does not always play a negative role in the weight loss process. The fat consumed will not be quickly converted into fat and stored in the body. In fact, the breakdown of fat can inhibit the synthesis of fat in the body to a certain extent.

Corn oil and olive oil, containing monounsaturated fats, can lower low-density lipoprotein (LDL) cholesterol, making them ideal cooking oils for weight loss and fitness. Furthermore, fatty foods are slow to digest and satiate, reducing the intake of starchy foods and snacks, thus contributing to weight loss. Therefore, consuming appropriate amounts of fat not only does not affect body shape but can also be beneficial for fitness.

Exercises that are not conducive to weight loss

High-intensity exercise

Increased exercise leads to a corresponding increase in the body's need for oxygen, nutrients, and metabolic byproducts. This necessitates the heart to increase its contraction force and frequency, and to pump more blood. During strenuous exercise, the heart's output may not meet the body's oxygen requirements, resulting in an anaerobic metabolic state. Anaerobic exercise does not utilize fat as the primary energy source; instead, it relies mainly on the breakdown of stored glycogen. In an oxygen-deficient environment, fat cannot be utilized and may produce incompletely oxidized acidic substances, such as ketones, reducing exercise endurance. A drop in blood sugar is a significant cause of hunger. After short periods of high-intensity exercise, blood sugar levels drop, often leading to increased appetite, which is detrimental to fat loss.

Short-duration exercise

During aerobic exercise, the body first uses glycogen stored in its cells to release energy. After 30 minutes of exercise, the body begins to convert energy from glycogen to fat. After about an hour of exercise, the energy required for exercise is mainly supplied by fat.

Explosive sports

Human muscles are composed of many muscle fibers, mainly divided into two categories: white muscle fibers and red muscle fibers. During exercise, such as explosive power training, it is primarily the white muscle fibers that are exercised. White muscle fibers have a larger cross-section, so the muscle groups tend to develop and become bulky. Using this method to lose weight will only make the muscles "bulkier".

In short, to achieve overall weight loss, you should engage in low- to moderate-intensity, long-duration (over 1 hour) aerobic exercise with a heart rate between 120 and 160 beats per minute. Examples include aerobics, jogging, and long-distance swimming.

How much water should a dieter drink per day?

Under normal circumstances, daily water requirements are directly proportional to the calories consumed; that is, approximately 1 milliliter of water is needed for every 1 kilocalorie of energy burned. Therefore, it is generally accepted that about 2500 milliliters of water are needed daily. The more calories consumed, the greater the water requirement.

If you sweat a lot during exercise and lose a significant amount of water, you need to replenish fluids promptly and appropriately to maintain your body's fluid balance. Of course, there are scientific principles to follow when drinking water.

Sports scientists recommend

Do not drink too much at once. Especially after exercise, drink small amounts of water frequently.

Drink 5 large glasses of water every day.

Drink 3 large glasses of low-fat or skim milk, about 300 ml each, for a total of 900 ml per day. Add little or no sugar.

How should children lose weight?

Children and adolescents should engage in weight loss exercises under the guidance and supervision of parents or teachers. It's crucial to fully consider and stimulate their interest to ensure they enjoy the exercise and maintain consistency. During these exercises, parents and teachers should offer plenty of encouragement, paying particular attention to the child's subtle psychological feelings and changes. Some obese children may be teased in kindergarten, school, or other group settings, leading to psychological barriers, reluctance to participate in group activities, and difficulty interacting with other children. This significantly reduces their interest in sports and can even negatively impact their healthy personality development. Sometimes, obese children may be slower to master certain sports due to less agility. In such cases, parents and teachers need to provide careful support, including choosing safe and effective forms of exercise based on the child's interests, such as running, playing football, swimming, or doing weight loss exercises. The exercise time doesn't need to be fixed; it can be done in the morning or between 6 and 8 pm. A gradual approach should be followed, with a one-month cycle. As the child adapts, the amount of exercise should be gradually increased. Every bit of progress should be fully encouraged. While engaging in weight loss exercises, children can continue their daily lives as usual. Parents and teachers should not be overly impatient, and should certainly not force children to engage in exercises they are unwilling or unsuitable for, or set unrealistic weight loss goals for them. Otherwise, it will backfire, not only making it difficult to achieve the weight loss goal, but also potentially having adverse effects on the children's physical and mental health.

It should be noted that children and adolescents are in a stage of growth and development, and their nutritional needs are higher than those of adults. When children are exercising to lose weight, their daily intake of various foods rich in high-quality protein, such as lean meat, eggs, fish, and soy products, should be adequately ensured. Foods rich in dietary fiber, minerals, vitamins, and trace elements are also essential during weight loss exercise and should therefore be consumed in sufficient quantities.