What does it mean to go on a diet from winter solstice?

Eat holiday food on the solstice in winter. Eating a diet on the solstice in winter means eating holiday food on the solstice in winter, jiaozi. Winter solstice is an important solar term in the China lunar calendar, and it is also a traditional festival of the Chinese nation. In ancient times, there was a saying that "the winter solstice will bring the sun", that is to say, the spirit of the sun began to recover slowly from the winter solstice.