Since ancient times, China has said that "medicine is better than food", and with the popularity of nourishing health and nourishing in recent years, peach gum, snow swallows, bird's nests and so on are also widely sought-after, and are also said to be "beauty-nourishing Yan holy goods."
So what are these "aristocratic" supplements? What about their nutritional value?
Is the effect of beauty and beauty really as magical as the legend?
What is "Peach Gum"?
Peach gum is a light yellow and transparent solid natural resin secreted from the bark of roseaceae peach or mountain peach. It is mainly composed of galactose, rhamnose, α-glucuronic acid and so on. It is a kind of plant water-soluble fiber. It can also be called a kind of polysaccharide food. The original peach gum becomes small molecular polysaccharide, which can thicken, emulsify, solidify and so on in food, so peach gum can be used as food additive.
peach (tree)
Peach gum swelling water absorption, can promote intestinal peristalsis, can help relieve constipation symptoms. Polysaccharides can slow down the rate of food entering the intestines from the stomach and increase the feeling of satiety, thus reducing the energy intake and achieving the goal of weight control. Many female friends will use peach gum to modulate peach gum silver ear soup and so on, and emphasize that peach gum is plant collagen protein, especially suitable for dry autumn and winter to the skin to replenish water, tighten the skin, then eat peach gum really supplement collagen?
First of all, collagen is the main component of connective tissue of skin, blood vessels, bones and so on. It belongs to animal protein. The hydrolyzed product is called gelatin, which can absorb water and expand to form elastic jelly.
Although gelatin and peach gum are colloid, they are essentially different and cannot be confused. So, how does peach gum with plant ingredients have collagen? Second, collagen beauty is a lack of scientific evidence of speculation.
Is it a bird's nest or not?
Xueyan mainly refers to the natural gum-like secretion of the genus Amorpha, similar to peach gum, the main components and properties are similar to peach gum, are water-insoluble macromolecular polysaccharides. It is similar to konjac, which provides a sense of fullness but little energy. In addition, as a water-absorbing dietary fiber, eating more can relieve constipation and promote defecation.
As for whitening, these plant polysaccharides do not allow you to eat "ice muscle snow skin", nor do they make the skin tight or help keep the skin hydrated. Of course, if you think it's good to eat and feel good, it might help.
What is the nutritional value of bird's nest?
A nest of saliva (or mixed with fleece feathers and weeds) secreted by any of the birds of the family Lycopodiaceae, which condense on cliffs, cliffs in caves or beams in buildings. Bird's nest contains 50% protein, 30% carbohydrates, 5% iron, 3% other minerals and 1.4% cellulose.
The protein in a bird's nest is mainly mucin secreted by epithelial cells (in other words, the saliva of a swallow). Although the protein content is as high as 50%, it takes into account the fact that it only eats 3? 5 grams a day. Its very few proteins do not have much value of nourishing. Moreover, it is still incomplete protein, nutritional value can not be compared with eggs, and milk, lean meat, soybean ratio is also a lot worse.
As for its carbohydrates and cellulose, eat some staple food, vegetables and fruits are enough to exceed. In addition, the iron and mineral content in bird's nest is very high, but these are inorganic substances, and the human body absorbs little or no absorption of them. In short, the nutrition of bird's nest is relatively simple. In terms of nutritional value, bird's nest is only a low-grade food, and it is not a universal supplement, as people think. Compared with the high price, it is not cost-effective.
Of course, some people say that it is the bird's nest acid, called the essence of the bird's nest, that measures the quality and beauty of the bird's nest. If you look at the name, you will think it is a unique ingredient of the bird's nest, and in fact, it also has a name called sialic acid. If you eat bird's nest to replenish sialic acid, it may not be cost-effective. The sialic acid content in dry bird's nests is about 10%. According to the usual diet, only 3-5 grams of sialic acid is eaten a day, or about 300-500 milligrams of sialic acid.
Studies have shown that a black egg contains more than 200 milligrams of sialic acid. Eating two black eggs a day is much cheaper than a bird's nest. In addition, after it is eaten into the stomach, it will further decompose under the action of digestive juice and lose activity. In other words, it has no chance to reach the surface of the cell in an entire molecular state to play the role of beauty and beauty.
The elderly show the difficult movements in Yoga
Can aging "slow down"?
Aging is the last problem anyone, especially a woman, wants to face. The National Institute of Aging says: "there is no cure that has been proven to delay or reverse aging," and a healthy lifestyle. Can make us "older and healthier"!
So from now on, to "Dietary pagoda" as a nutritional basis, as far as possible with their own three meals a day, to achieve reasonable collocation, balanced nutrition; At the same time, change unhealthy lifestyle, maintain a good state of mind, ensure adequate sleep, have a good mental outlook, this is the "keep young" important factors!