Traditional Chinese medicine doctors and health care scientists divide food into four attributes: warmth, heat, cold and cool. So that people can choose the most suitable food at any time according to their own physical changes and weather season changes.

Yin and Yang Properties of Food

Food can be divided into three categories according to the different properties of yin and yang: positive food, negative food and sexual food.

(1) positive food

Positive food refers to food with warm sex and taste. For example, noodles, wine, dog meat, mutton, mustard greens, carrots, green onions, garlic, ginger and leeks in staple foods, peppers in conditioning, lychee, peach, longan, jujube, dark plum and orange in fruits.

(2) Negative food

The so-called negative food refers to the food with a cold taste. For example, buckwheat and mung bean in the staple food, soybean milk, duck eggs, tofu, lobster sauce, crab, turtle, sea cucumber and laver in the non-staple food, celery, eggplant, spinach, bitter gourd, water spinach and cucumber in the vegetables, and pears, oranges and watermelons in the fruits.

(3) Eat flat food

The so-called plain food refers to three kinds of food with balanced tastes: warm, cold and cool. For example, rice, glutinous rice and soybeans in staple food, pork, rabbit meat, carp and squid in non-staple food, gourd, pumpkin, tomato, mushroom and lotus root in vegetables, apples, bazan and grapes in fruits.