The process of giant pandas eating steamed buns is more complicated than that of people. In order to increase nutrition, eggs are essential raw materials. In order to take care of the panda's taste, each steamed bun is hand-made by the breeder, which increases the elasticity and allows the panda to eat "gluten".

Wowotou is made of corn, millet and wheat, which contains calcium tablets, because pandas eat complementary foods such as mice and insects when they live in the wild. But in the zoo, the panda's staple food is only bamboo. Scientists believe that if we can add wowotou to giant pandas, they should live longer. Giant pandas can't eat ordinary corn bread we eat, so they need to use calcium-containing corn bread special for pandas. Wowotou is not enough. There must be fresh carrots and delicious sweet potatoes. An adult giant panda has to eat 6 wowotou, 2 carrots, 1 sweet potato a day, and the staple food is more than 20 kg of fresh bamboo.