Can printed materials such as newspapers or advertising papers be used to directly package food?

Most of the newspaper or advertising paper is ink. If newspaper or advertising paper is used to directly package food, it is easy to cause ink pollution.

First of all, the main pollutants in ink are heavy metals, including lead, chromium, cadmium, mercury, etc. For example, lead will hinder the formation of human blood cells and cause brain damage. In addition, the ink used in newspaper or advertising paper printing usually contains toxic organic solvents such as ethanol, isopropanol, toluene, and xylene, and the remaining part may be potentially dangerous. Finally, if you are using old newspapers, there is still a problem of spreading the virus.

Some plastic baby bottles contain "bisphenol A". Is long-term use of this kind of baby bottles harmful to infants and young children?

Bisphenol A is mainly used to produce polycarbonate (PC). Due to its low price and resistance to breakage, various products made from it are widely used. Baby bottles are one of them. Bisphenol A will precipitate into food and beverages after heating, and long-term use will affect the neurobehavioral, development, and immunity of infants and young children, and even cause cancer, causing early puberty and precocious puberty in girls. At present, some countries have begun to ban the production of milk bottles containing bisphenol A.

Is it healthy without eating any fat?

No, because fat is one of the essential nutrients for the human body, our diet needs to contain a certain amount of fat. Fat not only provides the calories and essential fatty acids needed by the body, but also helps the body absorb fat-soluble vitamins. However, excessive intake of fat also means that it is harmful to human health. Many common diseases such as heart disease are related to excessive consumption of fat, especially saturated fatty acids in animal fat.