Generally children are not suitable to eat dried cinnamon after precocious puberty, because the reason why children have precocious puberty is mostly related to kidney yin deficiency and fire. Children with kidney yin deficiency and fire will cause premature breast development and early menstruation, and children’s bone age will also be significantly early, while dried cinnamon is a food that nourishes kidney yang, the application of cinnamon will often aggravate the symptoms of children, which is not conducive to the control of precocious puberty. Therefore, children with precocious puberty can be given appropriate medicines to nourish kidney yin, such as Shengdi, Zhimu and Huangbai. Dried cinnamon is not suitable.