Eating duck and chestnuts. It's a custom to eat duck on the first day of Frost's Descent in south Fujian province and Taiwan. There is a saying in Fujian which goes, "Even nourishing all year is not as good as nourishing the human body on the first day of Frost's Descent." Eating duck is a way for people there to gain weight. Eating chestnuts during Frost's Descent is beneficial for one's health. Chestnuts have a warm nature and sweet flavor, and are good for nourishing the spleen and stomach, invigorating the circulation of blood, relieving coughs and reducing sputum.