The human body needs many nutrients, up to more than 50 kinds, which can be roughly divided into protein, lipids, carbohydrates, minerals, vitamins and water.
Protein is very important to human body and the foundation of life, accounting for about 20% of human body weight. The food provided to protein mainly includes meat, fish, eggs, dairy products and beans. These ingredients can also be made in many ways, such as boiled pork slices, shredded pork in Beijing sauce, fried pork slices with green peppers, sweet and sour tenderloin, braised fish slices, scrambled eggs with tomatoes, etc., which are all delicious dishes.
Lipids are divided into neutral fats and lipids. The former is what we often call oil, including animal fat and vegetable fat. Lard and fish oil are all animal oils in daily life, while soybean oil, corn oil, olive oil and rapeseed oil are all vegetable oils. In addition, flaxseed, avocado and nuts are also very high-quality fats.
Carbohydrates, also known as saccharides, can pass through human energy and mainly exist in staple foods, such as rice, wheat, sorghum, potatoes and sweet potatoes. Dietary fiber is a kind of carbohydrate, which can promote gastrointestinal peristalsis and cannot be digested and absorbed by human body. Among vegetables and fruits, dietary fiber is rich, such as cucumber, vegetables, tomatoes, apples, pears, watermelons and so on.
Minerals, also known as inorganic salts, are the general name of some chemical elements in the human body, which are divided into macro elements and trace elements. As we often say, calcium exists in dairy products and beans. Zinc is widely found in animal liver and seafood.