Is the substitute food suitable for "substitute meal"

"A bag in hand, I have to lose weight, a few spoonfuls, no running..." In recent years, with the increasing demand for weight-loss and body beauty, some food substitutes that claim to be easy to lose weight have become popular from abroad to China Especially when the weather is getting cold, it's easy to stick on the autumn fat, but it's hard to go out for sports Many consumers regard the use of substitute food as a panacea for weight loss This is just a kind of substitute food for ordinary food, which has changed its taste under the huge commercial value, and many consumers are blindly superstitious about the health of substitute food "Relaxed thin" behind the hidden danger "has been eating food for three months, spent thousands of yuan I can't help it I want to lose weight but I can't open my legs " Ms Chen, a Fuzhou consumer, is busy with her work on weekdays Most of her work is in the office She is increasingly full and does not like sports She has contacted with the "one meter" meal substitute in the wechat circle of friends and replaced three meals a day with the brand's milkshake Three months later, she did lose weight, but when she stopped using food substitutes, she was horrified to find that she was soon fatter than before The reporter looked at the representative food in Ms Chen's wechat circle of friends, and publicized that most of the photos were "green and healthy" dining pictures, which seemed to be scientific "one-on-one guidance of professional nutritionists" and thin beauty customers There were many "real records of successful weight loss" in the customer exchange group, which looked like "there is a picture, there is a truth" In the search of e-commerce platforms such as Taobao, the reporter found that there are more than 4000 kinds of food substitutes, and the monthly sales volume of products with the highest sales volume can exceed 20000 These food substitutes can be divided into four categories: carbohydrate represented by coarse grain powder, oil represented by coconut oil, protein represented by protein powder, protein shake, and fruit and vegetable fiber In addition, the reporter found that there are some "barley if the leaf green juice (barley tender leaf extract)" and other popular drinks that are not food substitutes, but also under the name of food substitutes, which are also mixed Most of their selling points are claiming that they are "low energy, high satiety and reasonable nutrition" "A meal a day, eat a small waist", "a course of treatment thin 10 jin" Such exaggerated publicity, reporters often see in wechat sales of the meal ads, and even appear in some of the main ingredients for high-fat nuts, high sugar dried fruits and other high calorie food, and some of the meal food packaging, even the lack of basic calorie data sheets "It's human nature to find a shortcut Businesses cater to this kind of psychology, under the banner of easy weight loss, they have packaged the food originally used for patients into a "God of weight loss" Ms Zheng, a registered dietitian, told reporters that the substitute food was very popular in the United States and Europe a few years ago, and has become a consumption hotspot in China in recent years, but its essence is just a common food, which is not as healthy as the advertisement said to be able to lose weight, so consumers should polish their eyes when they buy it "It's not reliable to lose weight with the substitute food instead of the usual food I really lost four or five kilograms, which made me trust it at the beginning But why is it rebounding so fast? " Ms Chen's question can be seen in many comments on food substitutes According to media reports, a young girl in Hunan suffered from hypokalemia because she only ate substitute biscuits for a long time; a 22-year-old girl in Hangzhou, who is 1.62 meters tall and weighs only 66 Jin, ate substitute food for half a year, resulting in impaired liver function and anorexia "Of course, you will lose weight if you only eat substitute food, because the essence of using substitute food to lose weight is to be hungry and thin." Registered nutritionist Ms Zheng said It is understood that the Chinese society of nutrition recommends that adult women eat 1800 calories a day The average meal can provide about 500-1000 calories, while the average bag of substitute food has only dozens of calories, which is far from meeting the human body's heat demand However, due to the addition of a large amount of dietary fiber, it can make people feel full and not hungry "As a result of low calorie intake, the body will inevitably use body fat for energy supply, reduce body fat, and naturally lose weight But for a long time of heat deficit, the body will use muscle protein tissue to maintain the heat needed by the body, which will eventually lead to muscle atrophy, organ function and resistance decline and other problems, and may cause anorexia for a long time Women's weight loss may also lead to amenorrhea, skin relaxation and other problems Ms Zheng said that the "hungry and thin" body has become a "fat prone body" with less muscle content and low basic metabolism, so once the normal diet is restored, it will be faster and harder to lose weight than before In addition, the nutrition of many generations of food is not balanced, and microelements can not meet the needs of human body According to reports, carbohydrate, fat and protein are the three major nutrients of human energy source The energy supply ratio of the three nutrients (the proportion of energy provided by a certain capacity nutrient to the total energy) needs to be allocated in a scientific range According to the "reference intake of dietary nutrients for Chinese residents" issued by the Chinese society of nutrition, the daily carbohydrate energy supply for adults (18-65 years old) should account for 50% - 65% of the total energy, 20% - 30% for fat and 10% - 15% for protein "Most food substitutes fail to meet this standard, especially some food substitutes, which are made up of coarse grain powder, have a high proportion of carbohydrates, are not healthy or even malnutrition." Ms Zheng said that at present, the substitute food lacks the corresponding industry standard restriction If you look carefully at the nutrition composition on the package of the substitute food, most of them can't reach the reference intake of the dietary nutrients and can't be regarded as the "substitute food" in the true sense.