#大有学问 #
乳铁蛋白火爆母婴店，你要警惕4大陷阱！
Everyone knows that lactoferrin is good, but it is really the fullest and best in breast milk. Commercialized lactoferrin may also have a little effect, but be sure to buy real goods, these goods will be very expensive, and the cost performance is very, very low.
Some parents say, I am not afraid of expensive, there is a little benefit to use for children, I think it is better to use money to give children various sports, diet, environment.
Haha, if you say that I can give the best to my children in every way, OK, then of course you can, you are happy.
Recently, it may be a trouble, and many mothers want to improve their children's immunity. Lactoferrin inevitably comes to mind.
What about the lactoferrin that is held up by the mother and baby store.
01
What is lactoferrin
Lactoferrin is an important non-heme iron-binding glycoprotein in breast milk.
Lactoferrin is found in the body's milk and various secretions, with the highest content in breast milk.
The amino acid sequence of human and bovine lactoferrin has 69% homology, so the two have similar biological activity.
However, the lactoferrin content in cow's milk is very low, and some formulas will add additional fortified lactoferrin to meet the nutritional needs of babies and promote their growth and development.
02
The role of lactoferrin
Lactoferrin has antimicrobial, promote intestinal development, promote iron absorption, immune regulation and other functions.
According to the Expert Consensus on the Health Effects of Lactoferrin in Infants and Young Children, lactoferrin has a certain role in preventing and adjuvant the treatment of infantile diarrhea, neonatal necrotizing enterocolitis, respiratory diseases, neonatal sepsis, and improving anemia in infants and young children and promoting their growth and development.
According to the data of the "Lactoferrin Consensus Report" of the Chinese Nutrition Society, the lactoferrin content of early breast milk (=28 days of breast milk) is between 0.44-4.4g/L, while the lactoferrin content in fresh milk is only 0.02-0.2g/L.
If the baby who does not have enough breast milk or cannot be exclusively breastfed, and wants to consume the same amount of lactoferrin as breast milk, he needs to choose a product with a similar range of lactoferrin content and lactoferrin content in breast milk to achieve the effect of lactoferrin in breast milk.
03
Lactoferrin is expensive
As one of the important immune substances in breast milk, lactoferrin has always been an indispensable immune protein for the growth of babies.
Many developed countries have long used lactoferrin in dairy products, and the mainland also allowed lactoferrin to infant formula in 2004 (the addition standard is ≤1.0g/kg).
In recent years, lactoferrin has attracted much attention, and more and more dairy companies have added lactoferrin to formula milk. Among them, there are many well-known brands.
However, lactoferrin is very precious and rare.
On the one hand, the lactoferrin content in milk is low, the separation process is complex, and the technical difficulty is large, resulting in a very low yield.
The lactoferrin content in fresh milk is only 0.02-0.2g/L, that is, an average of about 10,000kg of fresh milk can extract 1kg of lactoferrin.
On the other hand, according to the new national food safety standard "food nutrition fortifier lactoferrin" implemented in June 2017, the purity requirement of lactoferrin has been increased from 90% to 95%.
As soon as this regulation was introduced, some raw materials on the market did not meet the standards, the supply exceeded the demand, and the price of lactoferrin soared. The survey showed that in June of a certain year, the price of lactoferrin was 13,000 yuan/kg; As of October, the price of lactoferrin is 30,000 yuan/kg.
04
The lactoferrin market is full of pitfalls
As the efficacy of lactoferrin has gradually been widely recognized in the industry, the publicity of lactoferrin by major merchants (mother and baby stores) is also hot, which is amazing.
What "improve resistance not to get sick, resist various germs, promote nutrient absorption, reduce the negative effects of antibiotics ..." and so on.
Parents who don't buy a bucket for their children are like doing something sorry for their children.
However, there is a hidden trick behind this propaganda.
(1) Li Kui and Li Ghost are stupid and can't tell the difference
On the market, some merchants under the banner of "lactoferrin" are false, and even mixed the word "lactoferr" in their trademarks to deceive.
有些包装上TM的标签意思是，在商标还未成为注册商标的时候，标注“TM”标记，这样做就是告诉公众，这个图形或文字是作为商品的“商标”使用的，而不是作为“注册商标”使用的。
Mainland law has clear provisions on the use, but there are no provisions on ® the use and management of TM, as long as the operator wants to inform others that a certain sign is a sign used as a trademark, regardless of whether the sign applies for trademark registration, "TM" can be used.
This also means that the word "lactoferr" of this product may only be a temporary trademark name, and the ingredients do not contain lactoferrin at all, which is an ordinary protein powder or solid drink.
We can also see the word "solid drink" on the outer packaging of some products, but the color is very light, and it will be ignored if you are not careful, which is also one of the common means of misleading consumers.
There are still many merchants who register "sheep's head to sell dog meat" in major mother and baby stores or nutrition markets.
(2) The content is so low that you want to cry
Compared with the brand called "xx lactoferrin", buying products that do contain lactoferrin, the little fairies may get some comfort in their hearts, but after knowing the lactoferrin content, it is estimated that they will still be angry and want to curse.
At present, the lactoferrin-containing modulated milk powder on the market, the lactoferrin content is very low, and even the lactoferrin content of some products does not match the standard value or does not write the content at all.
我见过一罐调制乳粉乳铁蛋白的含量是100mg/100g。
Then each can of modulated milk powder (260g) contains 260mg of lactoferrin, that is, 0.26g.
Refer to breast milk intake, 6-month-old babies, feed 4~5 times a day, 180~240ml each time, that is, drink 720ml~1200ml of breast milk every day.
We assume that a 6-month-old baby drinks 1000ml of breast milk per day (that is, 1L, choose a relatively medium but easy to calculate amount), that is, the baby can consume 0.44-4.4g of lactoferrin per day (according to the "Lactoferrin Consensus Report" of the Chinese Nutrition Society, the lactoferrin content of early breast milk (= 28 days of breast milk) is between 0.44-4.4g/L).
The above-mentioned modulated milk powder, a whole can contains 0.26g of lactoferrin. That is, with this modulated milk powder alone, the baby needs to drink at least 2 full cans a day to achieve a lower standard.
As far as this modulated milk powder is concerned, the price per can is about 500 yuan, if you want to ensure the intake of lactoferrin, either break or cry.
(3) Whey protein and lactoferrin are confused
Based on the scarcity and high cost of lactoferrin, some merchants have exploited the banner of "whey protein" and claimed that whey protein and lactoferrin have the same effect.
What are the facts?
Whey protein is extracted from milk and dissolved in whey is a kind of protein, accounting for about 18% ~ 20% of milk protein. It mainly contains β-lactoglobulin, α-lactalbumin, immunoglobulin, lactoferrin and other ingredients.
However, the extraction process of whey protein and lactoferrin is very different, and the activity of lactoferrin contained in whey protein is greatly reduced after separation, purification and other processes.
Therefore, the merchant's claim that whey protein contains lactoferrin is not credible at all.
A casual search on the Internet will find that the wholesale price of food-grade whey protein concentrated protein powder raw materials is very "close to the people", and the price difference between pure food-grade lactoferrin powder is nearly 400 times.
Imagine how such a big gap could occur if whey protein and lactoferrin were similar in efficacy!
05
Whether lactoferrin can improve immunity
There are 7 main ways to help your baby improve immunity:
breastfeeding
vaccination
Eat a rich and balanced diet
Get enough sleep
Do not abuse antibiotics
Exercise
Pay attention to hygiene and wash your hands frequently
Among them, breastfeeding plays a very important role in improving the baby's immune system, which includes the immunomodulatory function of lactoferrin, but why is lactoferrin not divided into improving immunity?
On the one hand, the components contained in breast milk are very complex, antibodies, immune factors, enzymes and white blood cells, etc., not only lactoferrin plays a role.
On the other hand, the dosage and administration of lactoferrin used in various studies are different. Whether the same effectiveness (of breast milk) can be achieved for the clinical use of lactoferrin is still being studied.
06
Lactoferrin should not be eaten
The ingredient lactoferrin does have certain benefits (does not mean that the baby will not get sick after eating, and it can improve immunity), but it is necessary to eat right and eat enough to have an effect.
A large number of fake lactoferrin solid drinks and lactoferrin powder with minimal content on the market, mother and baby stores, and friend circles are really not worth buying.
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