The nutrients in the fire are fat, protein, carbohydrates and so on. Vegetable oil or animal oil will be added during the fire (the old firewood does not contain any animal fat oil). The main component of animal fat oil is fat, which will form saturated fatty acids and fatty acids after being digested in human body. Under the metabolic absorption of human body, some fatty acids will be converted into human fat, and the other part will be digested into energy. Fat is good for human health, but too much fat can also bring unexpected consequences, such as hyperlipidemia. Too much fat may also lead to diseases such as arteriosclerosis and high blood pressure. Therefore, eating fire should not be too much (easy to support), and fire is also divided into three categories. One is plain fire, and the heat and fat of crisp fire are generally not high. The other is cooking with vegetables, which is also the most popular. Its calories and fat are a little higher than vegetarian cooking, followed by meat cooking, which has the highest calories, but it is also the favorite of children.