Why was Sanlu milk powder contaminated with melamine? Why did the forgers add melamine to the milk powder? (The recent milk powder incident has caused a great stir, but after all the fuss, we still don't know what exactly is this melamine. Is this chemical substance added by Sanlu itself or by the dairy farmers? Recently, I read a blog written by a chief physician, which was fluent, easy to understand and clear, so I would like to share it. Repost address: http://blog.sina.com.cn/chenyanli) Due to professional reasons, these two days I have been paying attention to the infant kidney stone incidents that have occurred in many provinces across the country. This morning, I saw the information released by the Ministry of Health, which highly suspects that Sanlu milk powder has been contaminated with melamine. The company's self-inspection also admits that the product has been contaminated with melamine and recalls all products produced before August 6, 2008. Then why was the milk powder contaminated with melamine, and why did the forgers add melamine to the milk powder? Melamine was first used by Chinese forgers in the production of livestock feed. Adding this stuff to the feed, when tested by instruments, there are many nitrogen atoms, and after calculation, the protein content is also high. As a result, producers naturally save on the expensive protein powder expenses. In 1994, the third volume of the "International Chemical Safety Manual" compiled jointly by the International Chemical Safety Planning Bureau and the European Union Commission and the International Chemical Safety Card only explained: Long-term or repeated large intake of melamine may affect the kidneys and bladder, leading to the formation of stones. In this Sanlu milk powder incident, the cheapest baby milk powder costing 18 yuan per bag was "contaminated". Obviously, Sanlu adopted a low-price dumping strategy to occupy the last lucrative rural milk powder market. However, selling this 18-yuan-per-bag milk powder doesn't even cover the cost, and mass production would not only lose money but also the old capital, right? Thus, Sanlu cut costs by adding cheap soy protein powder to replace milk powder. There was nothing wrong with this soy protein powder originally, but this time it was added with forged melamine, a high-tech thing that eventually led to this shocking nationwide Sanlu milk powder incident. Of course, melamine must have been added to adult milk powder as well because adults' metabolic capacity is much stronger than infants', and except for special patients, naturally no poisoning incidents would occur. In addition, if you want to know how widely melamine is applied in China's food industry and feed industry, just google "protein essence", and you will see the results. In fact, there are now more advanced fake products than melamine, which can "withstand water-washing inspection" and "resist ammonia-nitrogen reaction". In short, your high-tech grandpa cannot detect that this is fake protein. The Sanlu milk powder incident reflects, from one side, the serious food safety problems in China. What do we have left that we can safely eat? The black hand of melamine has spread from the initial cattle and sheep feed market, and today, it has finally reached the field of infant milk powder. I think hundreds of millions of Chinese people have unknowingly eaten pork, beef, and chicken fed with melamine for many years, and unknowingly drank adult milk powder containing melamine for many years, and unknowingly were polluted by melamine. Has anyone studied the long-term impact of melamine on human health? I think definitely not, because no one would have thought that hundreds of millions of people in a country would actually eat raw materials of the plastic industry that have nothing to do with food. Remember that the big-headed baby incident in Anhui Fuyang in 2004 was also caused by milk powder. Looking back now, that incident only caused malnutrition in children without causing substantial damage to the body organs. At that time, Sanlu Milk Powder Group was on the blacklist of enterprises, but was removed for various reasons. Unexpectedly, four years later, an even worse incident occurred. Is it accidental or inevitable? Let's wait and see the handling result.