Eat sour in spring. Eat more sour foods in spring, such as foods containing vitamin C, fruits containing organic acids, and sweet and sour dishes. Scientific research has found that these sour foods contain certain substances, which can double the absorption rate of inorganic salts such as calcium, iron and zinc.

The torment of summer. The weather is hot in summer, and bitter food, such as bitter gourd and oily wheat, has the effect of clearing away heat and reducing fire. Proper intake of this kind of food is good for your health.

Nourish lungs in autumn. The dry climate and cool weather in autumn are good opportunities to nourish lung qi. Adding spicy food, such as ginger and garlic, to the diet can not only improve immunity, but also enhance blood circulation.

Nourish the kidney in winter. The cold weather in winter belongs to water and governs the kidney meridian, which is a good opportunity to nourish kidney qi. Therefore, we should eat more black food with heavy taste, such as fungus, black beans and sesame seeds.