IgG, the Golden Key to Immunity


These days, having a strong immune system is more important than ever. Having your own line of defenders to safeguard your health is worth more than its weight in gold.  

For the sake of this article, we will define immunity as the ability of our immune systems to defend against threats. We need to take control of our own health and give our immune systems the tools they need to be bulletproof.  

Immunoglobulin G is one such tool. Our bodies make it, and we can also use it as a supplement.

This molecule is essential for immune health.

What is IgG?

IgG stands for immunoglobulin G. It is not just any antibody, it is the most common antibody in the body, and it makes up about 80% of the immunoglobulins in our blood.

Antibodies are essential molecules of the immune system. They are specialized proteins that the immune system uses to fight off foreign invaders (bacteria, viruses, fungi, etc.).

The most notable role of immunoglobulin G is as a specific antibody that works to protect against infection by “remembering” germs and then eradicating those germs. Besides being a key defender, IgG serves many other important functions in immunity.

How does IgG affect the immune system?

Thanks to significant advances in scientific research, we know that most of the immune system lives in the gut. In fact, the gut houses about 70% of the immune system. The research has also shown that the largest immune organ is actually the gut. Therefore, immune system function relies on gut health.

This lining of the gut is like a surveillance system. It protects against microbial and viral invasion and strengthens the immune system.

IgG is crucial to keeping this gut – immune barrier strong.

Research has revealed that a lot of communication occurs between the gut lining, the gut bacteria and the immune cells. This communication is essential to immune function as it helps immune cells respond to foreign invaders when they are present.

The health of the gut microbiome dictates immune health. The health of your gut also predicts susceptibility to certain diseases.

Immunoglobulins, like IgG, regulate immune function and strengthen the gut-immune barrier. Immunoglobulins also bind to pathogens and toxins to get them out of the body as quickly as possible.

Concerned about viral respiratory infections? Check out IgG in the research!

IgG helps support the immune system within the upper respiratory tract.

A novel 2018 study published in Frontiers in Nutrition revealed that supplemental bovine IgG (like that in our Gut Repair)  can protect against upper respiratory tract infections through a variety of mechanisms. One major way is because of their ability to bind to human pathogens and prevent the infection of cells.

This specific study found that bovine IgG can bind an array of pathogens and allergens, including viral respiratory infections. For example, they have found bovine IgG to bind to RSV and influenza viruses (and prevent the infection of cells with these viruses).

This is why, the study proposes, earlier research showed the benefits of raw milk consumption in the first year of life. The immunoglobulin-rich raw milk correlated with a decreased risk of upper respiratory infections.

Bovine immunoglobulins reduce the severity of respiratory infections, another bonus.

What can you do to rev up your innate defenders?

If you’re concerned about your immunity or are doing your best to bulletproof your immune system, consider getting tested for leaky gut. If you have a leaky gut, you likely have a compromised immune system. We must heal the gut to ensure proper immune function and a successful warding off of pathogens.

Diagnosing leaky gut syndrome is such an important aspect of immunity and health. Medications, chemicals/ toxins, and even the Standard American Diet have affected the gut and immune systems for many individuals.

The other recommendation is to supplement with immunoglobulin G daily, which is in our Gut Repair! To ensure good gut health and boost immunity, our Gut Repair powder does just that. Take 1 tablespoon per day for prevention. Take 2 tablespoons per day for acute sick care.


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