Dairy products are defined as foods made from milk or sheep milk as the primary raw material with or without the addition of appropriate amounts of vitamins, minerals, and other auxiliary materials.

They are rich in protein, calcium, phosphorus, vitamins, and other nutrients, which help in bone growth and maintenance, enhance immunity, and regulate the balance of intestinal flora. Common dairy products include milk, yogurt, cheese, butter, and milk powder.

Milk is one of the most common and basic dairy products. It is rich in protein, calcium, phosphorus, and other nutrients that help in bone growth and maintenance. It comes in several varieties such as whole-fat milk, low-fat milk, and dehydrated milk.

Yogurt, on the other hand, is a dairy product made after the fermentation of lactic acid bacteria, which helps maintain intestinal health. It is rich in probiotics and lactic acid bacteria, which can adjust the balance of intestinal flora and enhance immunity.

Cheese is another dairy product made from milk as the primary raw material, with high nutritional value. It is rich in protein, fat, calcium, and other nutrients that help enhance the health of bones and teeth.

Butter, an edible oil made from milk as the raw material, is rich in fat and vitamin A. It is widely used for cooking, baking, bread, and other foods and is loved by many people.

Lastly, milk powder is made of milk or goat milk into powder-like dairy products for easy preservation and transportation. Its nutritional ingredients are similar to milk, and it can be used for baby formula milk powder, baked foods, and others.

Due to the multifaceted health role of dairy products, people are paying more attention to their processing and consumption. Currently, milk protein separations are used in food production to meet the special needs of different people.

For example, people with diabetes can drink drinks with high protein and low carbohydrates, while obese patients can cut drinks rich in chain amino groups. Those with low immune function can drink sugar-peptide-lactified drinks.

With the continuous improvement of people's attention to healthy diets, the consumer market for dairy products is also expanding. According to statistics, the scale of the global dairy market has exceeded $1 trillion, including milk, yogurt, cheese, butter, milk powder, and other products.

Several trends and factors may affect the future development of the dairy industry. Firstly, with the growth of the global population and the extension of life, the demand for dairy products will continue to increase, especially in Asia and Africa due to rapid population growth.

Secondly, as people become more aware of their health, the demand for healthy foods will rise. Dairy products are an important source of protein and are rich in a variety of vitamins and minerals, making them a healthy food choice.

Lastly, the development of emerging markets, particularly in Asia and Africa, will lead to rapid growth in demand for the dairy industry due to population growth and economic development.

Dairy products are essential sources of nutrients and play a vital role in human health. Their multi-faceted health benefits make them an essential component of a healthy diet.

With the increasing demand for healthy food choices, the dairy industry is poised to grow and expand, providing people with the necessary nutrients for a healthy lifestyle.