In China, bacon has a history of thousands of years. According to legend, as early as more than 2,000 years ago, Zhang Lu called King Hanning. When he came to Hongmiaotang in Hanzhong, he was defeated in the south, and the local people entertained him with bacon. In the 26th year of Guangxu in Qing Dynasty, Empress Dowager Cixi took refuge in xi 'an with Emperor Guangxu. Local officials in southern Shaanxi once presented bacon as a tribute to the emperor. After tasting the bacon, Cixi was full of praise.

2. Carp

Carp is not only high in protein content, but also high in quality. The digestibility of carp can reach 96%, and it contains essential elements such as amino acids, minerals, vitamin A and vitamin D. The fat of carp is mostly unsaturated fatty acid, which can reduce cholesterol to the maximum extent and prevent arteriosclerosis and coronary heart disease. Therefore, eating more fish can lead to a long and healthy life.

3. Black rice

Black rice is the treasure of rice. It is called "Gong Mi" and "Longevity Rice" and has special nutritional value. The color of black rice is different from other rice mainly because its outer cortex contains anti-aging anthocyanin pigment. The darker the color of rice, the stronger the anti-aging effect of epidermal pigment. In addition, this pigment is also rich in flavonoids active substances, which is five times that of white rice, which is of great benefit to prevent arteriosclerosis.