Cheap and nutritious ingredients come from ordinary ingredients in the general market. These common ingredients provide seven kinds of nutrients needed by human body-protein, fat, carbohydrates, vitamins, minerals, water, dietary fiber and some plant compounds. The key to their nutrition lies in collocation. All kinds of food are healthy and nutritious. In fact, the nutrients needed by the human body need a variety of ingredients. Eat some whole grains, fruits and vegetables, fish, poultry, eggs and meat every day. The nutrients in the common ingredients in these affordable home-cooked meals not only maintain our health, but also meet all kinds of nutrients needed by children's growth and development. The combination of various foods can promote the absorption of nutrients, so that we can get more comprehensive nutrition. A good diet is the key to nutrition and health.

Flower glue, shark fin, bird's nest, etc. Are expensive and misnamed "face ingredients"!

Flower glue: it is what we usually call a fish belly, especially the swim bladder of a big fish, which is the white bubble in the fish belly, which can help the fish adjust the ups and downs of the body.

First, eating fish belly is meaningless to supplement vitamins and mineral elements such as calcium, magnesium, iron and zinc;

Secondly, according to the data provided by the basic ingredient data table of functional food raw materials in China, the fish maw contains a high level of arginine (6964mg/ 100g dry weight), so the fish maw can help the human body to supplement part of arginine. Arginine can form nitric oxide in the human body, which has a certain effect on dilating blood vessels and improving blood supply to tissues, but its practical effect is limited, because the total amount eaten is small and the nutritional components are different.

Third, the amino acids of fish belly are glycine, alanine, glutamic acid, proline, arginine and aspartic acid, all of which are non-essential amino acids. Non-essential amino acids such as glycine, alanine and glutamic acid can be synthesized with the help of enough protein, starch and vitamins. The balance of essential amino acids in fish belly is not ideal, and the biological price is very low. So protein with fish belly is not a high-quality protein, so it is not reliable to eat it to supplement protein's diet?

Fourthly, several amino acids contained in fish maw are non-essential amino acids with good hydrophilicity, so fish maw is good at combining with water and shows thickening characteristics. Glycine and alanine are slightly sweet, while glutamic acid and aspartic acid are delicious.

Fifth, on the premise of not lacking dietary protein and bulging wallet, it is beneficial and harmless to eat some chewing gum and supplement arginine, but it has no effects such as lactation, nourishing yin and blood, and beauty beauty.

Hua Jiao didn't find any academic research papers related to health care function when searching literature.

Shark's fin: Filamentous cartilage from shark's fin, the main component of which is collagen, belongs to the incomplete protein with the lowest absorption and utilization rate in protein. Collagen is first decomposed into amino acids, which are absorbed as raw materials to synthesize new protein. It is recommended not to eat shark fin as much as possible. Shark fin has no special nutritional value. Its delicacy comes from ingredients, and its nutritional value is far less than that of protein, which comes from eggs, milk and meat. Protein in these foods is more easily absorbed and utilized than collagen.

In addition, it is also found that the content of heavy metals such as mercury in shark fin is much higher than that of other fish. Because heavy metals in industrial wastewater will be enriched to sharks through the food chain. So eating shark fin is cruel and may be harmful to health. From the point of view of ecological balance and wildlife protection, eating shark fin is not recommended.

Bird's Nest: Actually, it refers to the nest of seabird Jin Siyan, which is mostly built on the cliffs of tropical and subtropical islands. Jin Siyan began to build a nest in spring, and its mouth can secrete a gelatinous saliva. After being spit out and dried by the sea breeze, it becomes a translucent yellowish substance.

Natural bird's nest (including domestic bird's nest and cave bird's nest) will contain feathers, sand and other debris during the molding process. After collecting bird's nest, it needs sorting, soaking in water, cleaning, removing feathers and other impurities, shaping, heating, drying and packaging to make edible bird's nest.

In short, the main component of bird's nest is swallow saliva, which is called bird's nest acid, also called sialic acid. Bird's nest acid is a component extracted from bird's nest complex protein, accounting for about 3%- 15% of the dry matter of bird's nest. Many vertebrates contain bird's nest acid. The concentration of bird's nest acid is the highest in the central nervous system of mammals, and it is very high in the gray matter of the brain. Someone once made fake bird's nest products containing bird's nest acid by processing raw materials such as pig brain and adding saliva, gastric juice, urine and serum.

In terms of dry matter, bird's nest is 50% protein, 30% carbohydrate, 65,438+00% water and some minerals. Bird's nest has no special nutritional value. Although the content of protein is high, most of these protein are incomplete protein which is not easily absorbed by human body, and the quality is not as good as that of eggs and milk.

Eating bird's nest is neither environmentally friendly nor safe. Bird's nest is by no means a health necessity. It may contain nitrite, lead and mercury, but the real bird's nest may not be that much.