Donkey-hide gelatin, bird's nest really "beauty"?

"Beauty and the clergy," not unheard

Beijing News weekly of the new knowledge

Now, a lot of things are being packaged into "beauty and the clergy," donkey-hide gelatin, bird's nest, sea clams, fish, Ganoderma lucidum ...

Gives people the feeling is just eat, have the effect of the "beauty". Beauty is really so simple?

Donkey-hide gelatin protein is not good

Mentioned that "beauty and the clergy," often someone (e.g., businesses), followed by a sentence: how many species of the human body with essential amino acids, vitamins, how many different kinds of trace elements, rich in certain components ...

In all, any kind of food contain "amino acids, vitamins and trace elements", and "rich in some constituents".

The vast majority of nature and animals, all contain protein, fat, carbohydrates, vitamins and minerals. "The beauty of the incumbent" contain any ingredients that are found in ordinary foods (even better). For example, donkey-hide gelatin and fish, the main ingredient is a protein called gelatin. From the perspective of food nutrition, gelatin is poor quality protein. Human protein requirement is designed to meet the needs of amino acids, while human demand for various kinds of amino acids is different. Nature of the various protein amino acid profile also varies. If a protein's amino acid composition and human needs are similar, so it meets the needs of the human body the amount required is relatively small. In food science, said this kind of protein quality is better. The fish can be donkey-hide gelatin, amino acid composition and human demand difference too far, and the lack of essential, so the value of the nutrition is very poor. In this sense, milk, egg and soy protein is the best.

Bird's nest to promote cell growth

Therefore, "clerical" If there is magic, you can only expect "unconventional" component.

For example, some people say that nest in the "wealth of epidermal growth factor, can promote cell growth", in order to achieve the "beauty". Not to mention the nests are in really rich of epidermal growth factor, even if it has, it is for the human body is a bit meaningless. Epidermal growth factor is a small molecule protein, its physiological role with the cell surface of epidermal growth factor receptor binding, start the cell division process, enabling the proliferation of cells. This factor is the body's normal physiological activities. It does require the whole molecule arrives at the cell surface, and maintains the natural spatial structure. It even exists in the bird's nest, in the cooking process will lose their spatial structure. In addition, it is eating into the stomach, in digestive juice of further decomposition, no chance to reach the entire state of molecular cell-surface to play the role of the "beauty". More terrible is that if you really have the epidermal growth factor can be forded "mines" reach cell surface array, for the human body is not a good thing. Cell division is too strong, cancer — there are many cancer drug mechanism of action is to preempt the epidermal growth factor receptor, but lost to epidermal growth factor.

As such, Ganoderma lucidum, snow because its growth environment is very special, it may contain some material particular.

For these components also does have a lot of research. However, the current find things, no one can get on board with beauty. Some may say that these wonderful things, which must have modern science does not know of the fantastic ingredients, chances are there are cosmetic effects. Logically speaking, this is indeed the "may". But this kind of "may" and not "in street peddlars of ancestral recipes panacea," "may," even greater.

What, then, the

The human body is a complex whole, maintain its normal operation and does not require special "nutrients".

Some food components to improve the functions of the human body, prevent certain diseases, to a limited extent. But use of these substances method sometimes very complex, and not eaten. So although the incumbent "beauty" has a great market prospects, but in modern food science research but almost no one got — success is close to zero for no one is willing to invest.

People say that women like flowers.

To keep good flowers need appropriate water, as well as resting on ordinary fertilizers. Expect to get some "magic" of fertilizer to keep out the beautiful flowers, is not realistic. Similarly, maintaining the functions of the human body, but also healthy functioning and don't need the "magic" and "special" food. Composition balanced normal diet is the best "incumbent".

□ Cloud Centerless (United States Food Engineering doctorate)