For example, tomatoes listed in midsummer are seasonal vegetables, while tomatoes eaten in winter are anti-season vegetables in greenhouses. Because some ripening agents prove harmful to people, seasonal vegetables are safer.
Benefits of winter vegetables:
Large white radish is an indispensable dish for many families to keep healthy in winter. Chinese medicine believes that radish has the functions of digestion, phlegm-resolving, asthma-relieving, heat-clearing, qi-smoothing, swelling-reducing and silt-removing. Most children have symptoms of upper respiratory tract infection such as dry throat, sore throat, repeated cough, and difficulty in spitting when they catch a cold. Eating more crisp, delicious and tender radish can not only stimulate appetite and help digestion, but also nourish the throat, eliminate phlegm and smooth qi, and effectively prevent colds.
Baidu Encyclopedia-Seasonal Cuisine