Before 2005, it was widely believed in society that "red-shelled eggs are laid by free-range chickens, so they are more nutritious than white-shelled eggs."
In response to this claim, CCTV's Health Channel debunked it on September 13, 2006, in a program called "The Science of Eating Eggs," stating that tests showed almost no nutritional difference between eggs of different shell colors. In the following years, rumors about the nutritional differences between eggshell types spread widely across the country via the internet. During this period, various media outlets, such as "China Food Science and Technology Network," "Xinhua News Agency," and "Hunan Online," published articles to popularize science and debunk the myths. However, many netizens continued to ask questions on Q&A platforms like "Baidu Knows" and "I Ask." This rumor even topped the list of the "Top 10 Life Rumors" of 2014 with 10.96 million searches.