No special food taboo. According to the media network of the medical association, Liuwangguo is not suitable for people with weak spleen and stomach, and there is no special taboo for eating together. Liuwangguo has the functions of improving eyesight, protecting stomach, supplementing nutrition and preventing roundworms. The scientific name of Liuwangguo is Apple Fruit and Nine-layer Skin, because it can be peeled for nine times from shell to core, and because it looks like phoenix eyes, it is also called "Eichhornia crassipes". It ripens in July and August, and its shell is like a red velvet purse, with sharp and cracked shells on both sides exposed.