LPA, also known as defatted invertase, is reported to have more than 90 million obese people and about 200 million overweight people in China. The market of slimming health products is huge, with annual sales of nearly 654.38+0 billion yuan. It is estimated that the consumption of slimming products will reach 60 billion yuan in 2065.438+00 (China Economic Times, April 2006, 65.438+07). In order to compete for the market, various weight loss methods and concept propaganda have been invented, some of which are still absurd. For example, CCTV once disclosed a slimming product "liposuction patch under the foot", claiming that human body fat can be extracted by pouring powder on the adhesive tape and sticking it on the soles of feet. This ridiculous thing, which only people who know a little about human physiology can know, has actually deceived many people into buying it at a high price.

The principles of some weight-loss health care products sound much more scientific, which makes some people with not low scientific literacy doubt. I recently received a letter from a reader, which said:

"I am a fat man, because I am influenced by your station, so I know that the credibility of health care products is very low. However, there is a slimming product called' Defatted LPA' recently, which is very vivid and makes me a little excited as a fat man who wants to lose weight. So I want to ask you if this product is true or not. This product claims to directly supplement LPA (defatting invertase) to decompose body fat. Because I have seen several batches of examples of nucleic acid nutrition, I wonder if this defatted invertase will also be broken down into smaller molecules and absorbed by the gastrointestinal tract, so that it is ineffective to directly supplement LPA? "

I looked it up online and found that this product seems to sell well. According to the manufacturer's advertisement, its component is LPA, also called defatting invertase, which is an enzyme naturally secreted by the human body to decompose fat. It can reduce weight by 5-40 kg in about 30 days. "At the weight loss medical conference held in Geneva, 92% of weight loss experts thought that the effect of LPA degreasing was close to the limit of scientific weight loss!"

However, there is no "defatting invertase" in human body. Search the web page with this word, and all the advertisements for this product will come out. If there is enzyme, oral administration will not be effective, because enzyme, as a kind of protein, will be digested in the digestive tract after oral administration. In biochemistry, LPA is lysophosphatidic acid, which is a signal molecule between cells and cannot decompose fat.

So, what is the real ingredient of this "defatted LPA" slimming product? According to the inquiry of the batch number Weishijianzi (1999)0 189 on the product packaging, we can know that the product name submitted for approval is "Mefule Slimming Beauty Tablet", and its effective component is total flavonoids, which is a ubiquitous substance in plants and may have anti-inflammatory, antibacterial and anticancer effects, but it is not magical in fruits, vegetables and tea.

Packaging very common substances with specious scientific terms like this, and then selling them at high prices, is a common advertising technique for health care products, especially weight-loss health care products, which we have also exposed before. For example, there is a kind of high-tech product-oil absorption, which is called special for space astronauts. It can "professionally suck the small stomach for 20 days", "extract the oil in the intestine" and "professionally treat the stomach bulge". It is said to be based on "American Aerospace Organization found that green plant embryos growing in cold oily soil above 46.3 north latitude can extract and absorb oil". According to the batch number of the product, we can know that its approval number is "Duov Gu Jing", and its main component is rice bran, which has the functions of "improving gastrointestinal function (relaxing bowels) and regulating blood lipid". As for the discovery of the American Aerospace Organization, it is naturally fabricated.

In August last year, Beijing Science and Technology News exposed the oil-absorbing materials for a long time (questioning Hatch's myth of oil-absorbing to lose weight, August 3, 2005), and then CCTV economic channel Life 3 15 broadcasted Oil Absorber or Gold Absorber on September 9, further revealing that the lead content of this health care product exceeded the national limit standard of harmful metals of 65,438+. This product was also listed as unqualified health food by Quanzhou Health Bureau because of its arsenic content exceeding the standard. But all this has not stopped the best-selling products.

Of course, the exposure of the media can't be said to have no effect at all, and sometimes it can make the management take some actions. On May 26th, the US Food and Drug Administration in Beijing announced the list of the first batch of 16 military hospitals whose military names were stolen. At the same time, he said that the military hospitals publicized by the media are all fake, and the military does not allow its medical institutions to publish medical information on the Internet and other media. On the same day, the State Administration of Pharmaceutical Products banned the advertisement of "Golden Partner" brand multivitamin tablets nationwide. The reason for the ban is that Wuxi Jiante Pharmaceutical Co., Ltd. tampered with the advertising content without authorization. After countless consumers have been cheated of their money, people feel that they are too kind to the deceived, rather than imposing heavy penalties and pursuing legal responsibility. However, it is best not to let false advertisements mislead and deceive consumers. What needs to be reminded to the management department is that there are countless false advertisements popular on TV, newspapers and the Internet. None of the advertisements for health products I have seen are exaggerated and false. Strictly speaking, every advertisement should be banned from playing and publishing.