Ice cream is one of the common summer foods. Ice cream is a volume expanding frozen food made from drinking water, milk, milk powder, cream (or vegetable oil), sugar, etc., with an appropriate amount of food additives, through mixing, sterilization, homogenization, aging, freezing, hardening and other processes.

In its simplest form, ice cream is a cold food made by mixing common foods (milk, cheese, cream, etc.) with some desserts and other seasonings. When they are mixed, the ambient temperature needs to be reduced to a very low level to ensure that they form a softer form rather than a large ice cube. Industrial ice cream is usually made by injecting the mixed ice cream liquid into the mold of ice salt mixture. The ice salt mixture will absorb a large amount of heat during the melting process, and the prepared liquid can be easily frozen into ice cream. According to the Federal Food Law of the United States, the cream content of ice cream is at least 1%.

Ice cream is a kind of food containing high-quality protein, high sugar, and high fat. In addition, it also contains amino acids, calcium, phosphorus, potassium, sodium, chlorine, sulfur, and iron. It has the function of regulating physiological function, maintaining osmotic pressure and pH. Data show that the digestibility in human body can reach more than 95%, which is higher than that of meat and fat. Ice cream is very suitable for people who need to relieve heat and supplement energy slightly.

The main nutritional components of ice cream are sugar and fat. Ice cream contains sugars, which are composed of lactose in milk, various fruit juices, fructose in fruit pulp and sucrose. The organic acids, tannins and various vitamins in ice cream can provide the necessary nutrients for the human body. Therefore, ice cream is not suitable for patients with diabetes, gastroenteritis, cholecystitis, hepatitis, gastrointestinal dysfunction, and other diseases.

The fat in ice cream mainly comes from milk and eggs. There is more lecithin, which can release choline, which is helpful to improve people's memory. Fat soluble vitamins in fat are also easily absorbed by the human body. However, ice cream should not be consumed in large quantities for a long time or even replace daily meals, otherwise it will lead to nutritional deficiency, and may damage teeth and obesity.