Food and nutrition are the basic conditions for human survival and the cornerstone of health. The human body is like a building, colorful food is the materials that constitute this building. According to the age of seventy, the total amount of food in a person’s life is nearly 60 tons, and the average meal is 75,000 times. Such a large amount of food is enough to change the direction of human health to some extent. Regardless of spring, summer, autumn and winter, diet should follow some basic principles. First of all, the variety of food should be as diverse as possible, so that the number of calories and various nutrients are sufficient and in the right proportion, too much and not enough will cause adverse consequences. The main food has coarse and fine, side dishes have meat and vegetarian, both animal food and soy products, dairy products, but also more vegetables and fruits, but also drink more water. Second, reduce the amount of cooking oil, eat a light, low-salt, low-sugar diet. The Chinese Dietary Guidelines recommend that the daily per capita consumption of fats and oils should not exceed 25 grams or 30 grams, and the daily salt should not exceed 6 grams, and the latest report of the World Health Organization is that 5 grams of salt per day is enough. Third, eat regularly and quantitatively, two or three points hungry and seven or eight points full. Fourth, exercise every day, eat and move two balance, maintain the appropriate weight. Winter includes six festivals, including winter, snow, snow, winter solstice, small cold, cold, etc., winter as each of the winter festival, around November 8 each year. Winter is the coldest season of the year, folk have winter “tonic” said, advocating more “fat, sweet and thick” to resist the cold, because the cold to consume more heat, this statement in the end is credible? Is there any scientific basis? Life experience tells us that weight gain is more likely to get out of control in winter, because in winter, people’s activity is significantly less than the thin clothing summer, and appetite is significantly stronger than in summer. Summer heat, so that people sweat a lot to take away a lot of extra energy, so in this season weight is easy to maintain, is a good time to enhance the confidence of obese people, scientific slimming. Therefore, it is not scientifically justified to say that “fat, sweet and thick taste” in winter. In ancient times, health practitioners mostly advocate drinking porridge health care in winter. For example, late winter morning drink lamb porridge, red dates porridge, radish porridge, corn porridge, folk and winter solstice eat red bean porridge, the eighth day of the lunar month eat “lappa porridge”, the twenty-fifth day of the lunar month eat “eight porridge” custom. Drinking congee is a very good form of meal in Chinese food culture, reflecting a good mix of staple foods and side dishes, and easy to digest and absorb. Of course, this form of diet is also suitable for other seasons, especially summer. Winter is also the season of chronic diseases, such as cardiovascular diseases, cerebrovascular diseases, diabetes and respiratory diseases. Therefore, during this season, it is more important to pay attention to a balanced diet, as well as to keep warm, to live in moderation and to get enough sleep. Don’t put on thick clothes all at once in winter because you are afraid of being cold, and don’t stay in the air-conditioned room all day to enjoy the warmth created by the air conditioner. The best way to get yourself moving is to go running and climbing in the sluggish winter, but also to let yourself get more sunlight. Sunlight not only brings warmth, but also dries up the seasonal blues, which are directly related to the shortened hours of sunlight. In addition, you should avoid eating cold food and sleeping with your head covered during the winter. Soaking your feet in warm water daily and wearing shoes with good moisture absorption are also important health habits.