As the old saying goes, “Adhere to the natural rhythms of time, and nourish the body through diet.” The core wisdom of Chinese dietary therapy lies in adjusting one’s diet in accordance with the seasonal climate changes. Different seasons bring distinct climatic conditions, which in turn affect the functional state of the body’s organs and the rate of metabolism. By selecting appropriate ingredients and modifying dietary patterns according to the season, individuals can better meet their physiological needs, thereby achieving optimal health regulation with minimal effort.
The core principle of spring dietary supplementation lies in soothing the liver and regulating qi, as well as warming and strengthening the spleen. In terms of diet, it is advisable to avoid greasy, spicy, raw, cold, or cooling foods to prevent damage to the spleen and stomach and stagnation of liver qi. Daily consumption of ingredients such as bamboo shoots, spinach, celery, yam, and tremella fungus is recommended, as they help clear heat and promote the smooth flow of liver qi. Additionally, excessive tonification should be avoided in spring; instead, a light and warm-tonifying diet is recommended to activate bodily functions, facilitate the generation of yang qi, and alleviate common spring-related symptoms such as spring fatigue, dry mouth, and dry skin.
  Summer is characterized by high temperatures, abundant rainfall, and a sultry, humid climate, which predisposes the human body to dampness accumulation, spleen-stomach deficiency, irritability, internal heat, and loss of appetite. The key principles of summer health preservation focus on clearing heat and eliminating dampness, as well as stimulating appetite and strengthening the spleen. Daily consumption of heat-clearing and dampness-eliminating foods such as cucumber, winter melon, bitter gourd, mung beans, lotus seeds, and coix seed helps the body expel excess dampness. During summer, excessive intake of cold foods—including iced beverages, chilled fruits, and raw or cold dishes—should be avoided, as these may irritate the gastrointestinal tract, leading to spleen-stomach deficiency-cold syndrome, diarrhea, and abdominal pain. The diet should prioritize light and easily digestible foods to reduce gastrointestinal burden and ensure a comfortable summer experience.
  Autumn is characterized by dry air and weather conditions, representing a typical “dry season” during which the human body is highly susceptible to autumn dryness symptoms such as dry cough, throat irritation, skin peeling, and xerostomia (dry mouth and tongue). Autumn dietary supplementation adheres to the principles of nourishing yin, moistening dryness, and promoting lung function to generate body fluids. Yin-nourishing foods such as pears, lily bulbs, snow pears, lotus roots, honey, and tremella fungus are recommended to alleviate bodily dryness. Additionally, given the increased diurnal temperature variation in autumn, excessive consumption of cold foods should be avoided. Instead, moderate warming therapies are advised to nourish the lungs, enhance respiratory tract resistance, and prevent autumn-related colds and coughs.
  During winter, the climate is extremely cold, yang energy converges, and human metabolism slows down, making the body more susceptible to cold invasion, leading to cold hands and feet, qi and blood deficiency, and weakened immunity. Winter is the optimal period for nourishment, with the primary focus of health preservation being warming and replenishing qi and blood, as well as defending against cold and restoring vital energy. Moderate consumption of warming and nourishing foods such as mutton, red dates, longan, radish, and black sesame seeds can help replenish qi and blood and resist cold. However, excessive supplementation during winter should be avoided, as overeating or excessive nourishment may cause indigestion and internal heat. Adhering to the principle of “moderate warming and supplementation” is essential for consolidating the foundation and enhancing vitality, thereby laying a solid foundation for health in the coming year.
  As the seasons change, dietary habits should be adjusted accordingly. Following seasonal dietary supplementation represents the most suitable and gentle long-term health preservation method for the general population.