2. Although winter jujube has sweetness, its sweetness is mainly provided by fructose, and its content is not very high. Compared with red dates, the sugar content is higher. So eating winter dates won't get angry.

3. Although Dongzao is a new variety grafted with jujube trees, its characters have changed because its mature season is much later than that of jujube trees. Jujube is a hot fruit, and winter jujube is a neutral fruit. People with cold constitution or hot constitution can eat winter dates, and they will not get angry if they eat too much.