The advantages are high speed, low price and easy to carry; The disadvantages are malnutrition, food safety and environmental pollution.

1. Fast food can be made in a short time, which can meet the needs of people's fast-paced life. The price of fast food is relatively low, which can meet some people's economic needs. Fast food is sold in the form of take-out or take-out, which can be enjoyed anytime and anywhere, convenient and fast.

2. Fast food usually contains high calorie, fat, salt, sugar and other ingredients, which can easily lead to obesity, hypertension and other health problems if eaten for a long time. Due to the high speed of making fast food, the requirements for food safety are also high, but it does not rule out that some fast food restaurants may have improper operations during the production process, which may lead to food safety problems. Fast food usually uses disposable tableware and packaging, which is easy to cause environmental pollution.