The answer is no.
Many merchants emphasize that the content of immunoglobulin IgG is high, with 30%, 35%, or even 40%, thus proving that this is a high-quality colostrum.
In fact, this is a "marketing strategy" for merchants to take advantage of consumers' lack of awareness, and high IgG content does not mean that bovine colostrum is of good quality.
iggWhat determines the content?
The content of IgG in bovine colostrum is mainly determined by two factors, one is the content of IgG in raw bovine colostrum, and the other is the processing and purification process.
Virgin colostrum is raw milk from cows within 7 days of calving, and if produced in the usual way, the IgG content is about 15%-20%.
To obtain higher levels of IgG, more other nutrients need to be filtered out, or extracted multiple times.
So, here's the problem.
The reason why bovine colostrum has a significant "self-protection" effect is that it is rich in many active proteins, and it is rich in more than 250 other nutrients, such as immune factor lactoferrin, growth factor CBP colostrum alkaline protein, lactoperoxidase, lysozyme, etc., which play a synergistic role with each other.
*: "Demystifying Bovine Colostrum to Strengthen Immunity and Strengthen Bone Function - Colostrum Alkaline Protein CBP and Bone Health".
However, if the IgG content is too much pursued, repeated purification, or depth filtration, the biological activity of the protein may be destroyed and other nutrients may be lost.
Taking care of one or the other, the gains outweigh the losses. This is also the reason why the IgG content of colostrum of Baibeiji, Feihe, Peizhi and other brands is about 20%.
The key is to look at the originaliggcontent
When choosing bovine colostrum, you should not only look at the finished product, but also pay attention to the content of its original nutrients.
The popular science book "Revealing the Secret of Bovine Colostrum to Strengthen Immunity and Strengthen Bone Function - Colostrum Alkaline Protein CBP and Bone Health" published by South China University of Technology introduces that bovine colostrum is also divided into grades, and the world's top bovine colostrum is currently recognized as bovine colostrum collected within 24 hours.
*: "Demystifying Bovine Colostrum to Strengthen Immunity and Strengthen Bone Function - Colostrum Alkaline Protein CBP and Bone Health".
The biological activity of the protein and the content of nutrients in the raw colostrum collected from 24-hour milk far exceed that of 72-hour and 7-day colostrum. This is the key to the promotion and use of 24-hour cattle chu by brands such as Biolife, Peizhi, Feihe, and Tomson Beijian.
Bovine colostrum, like human colostrum, contains immunoglobulins, lactoferrin, growth factors, oligosaccharides and other core functional components will decay rapidly over time, and the colostrum collected within 24 hours after calving contains higher content of original nutrients and better biological activity than those collected within 72 hours.
Even if the 24-hour colostrum with higher original IgG content, the IgG content of the colostrum powder produced by scientific process is only about 20%, so the colostrum produced at other times must be achieved through other unconventional processes to obtain higher IgG.
HowGetMoreiggImmunoglobulin?
How can we get more bioactive and nutrient-rich colostrum?
Actually, it's very simple, you just need to increase your colostrum intake. Eating 2 grams of 20% 24-hour colostrum per day is higher than eating 1 gram of 30% colostrum.
*: "Demystifying Bovine Colostrum to Strengthen Immunity and Strengthen Bone Function - Colostrum Alkaline Protein CBP and Bone Health".
Final summary: 24 hours of raw bovine colostrum, 20% IgG content of bovine colostrum, is the best choice for both biological activity and nutrient richness.