In the Bencao Gangmu (Compendium of Materia Medica), Li Shi-zheng repeatedly exhorts that dog meat used to provide fortification in the winter months must only come from dogs raised to be eaten, and not from beloved family pets.
《本草綱目》中，作者李時珍便是慎重叮嚀，藥方用的必須是專門養來食用的「菜狗」；可別把人家養了多年、情感深厚的愛犬抓來冬令進補。