The nucleus in the middle of the day lily can't be pulled out. Regular eating of day lily can moisturize the skin, enhance the toughness and elasticity of the skin, make the skin tender, smooth and soft, reduce wrinkles, fade spots and add beauty. Day lily also has antibacterial and immune functions, has moderate and mild anti-inflammatory and detoxification effects, and has a certain role in preventing infection.

Modern Chinese and foreign scholars have further discovered the medicinal value of day lily. For example, Japanese scholars call day lily "brain-nourishing dish": China Journal of Nutrition once commented that day lily has the function of significantly lowering animal serum cholesterol. As we all know, the increase of cholesterol is one of the important factors leading to diseases and physical decline in middle-aged and elderly people. There are not many vegetables that can resist aging and are delicious and nutritious, but day lily has these characteristics on the contrary.