1, Food (English: food) refers to substances that can meet the normal physiological and biochemical energy needs of the body and prolong normal life. For the human body, substances that can meet the needs of normal life activities and help to prolong life are called food. Food is usually composed of carbohydrate, fat, protein and water, which can provide nutrition or pleasure for human beings or organisms by eating or drinking. The source of food can be plants, animals or other organisms, such as fungi, or fermented products, such as alcohol. Humans obtain food through gathering, farming, animal husbandry, hunting, fishing and hunting and other different ways.

2. A cookbook, also known as a cookbook, is a document or book that teaches people to cook food. Generally, it is a book or manual on daily diet, with information such as cooking formula, cooking steps and skills. After scientific analysis, according to the category or system of an object, it is compiled into tables or other neat forms for reference.