Nine o'clock is the coldest time of the year. Low temperature will accelerate the metabolism of vitamins in the body, and energy should be supplemented in time in the diet. Vitamins can increase the body's cold tolerance and immunity, and the seasonal nutritional value of vegetables is the best all year round. The common seasonal foods in recent days are: white radish, Chinese cabbage, wax gourd, pumpkin, carrot, sweet potato, purple potato, spinach, chrysanthemum and so on.

2. Seasonal fruits

In winter, it is dry. Besides drinking more water, you can also absorb water from seasonal fruits. Besides containing a lot of water, fruit also contains vitamins, minerals, dietary fiber, protein, sugars, acids and other nutrients, which have various nourishing effects on the body after eating. Common seasonal fruits are: sugarcane, water chestnut, orange, orange juice, grapefruit, apple, winter jujube, pear, hawthorn, persimmon, kiwi fruit and so on.

3. Meat food

It was cold for several days. In order to improve the body's ability to keep out the cold, you can eat some high-protein meat food to improve the body's ability to keep out the cold and immunity. Good body resistance in winter will make you less likely to get sick next year. This is also the origin of traditional winter culture. The recommended meat foods for several days are: mutton, beef, chicken, fish, pork and so on.