Your Child’s Growing Immune System
Children differ from adults in a lot of ways. One big way is, unlike adults, the bodies of children and adolescents are still developing on all levels. It is easy to see this growth on the outside, but sometimes we forget that their internal organs and systems are developing too!
The still-forming immune system of a child also differs greatly from that of an adult. In a healthy adult, the immune system is made up of hundreds of basic as well as specific mechanisms and substances that work together synergistically to fight pathogens. The immune system of a young child, however, can be quite different.
According to physicians at Children’s Hospital of Philadelphia, when a healthy baby is born, he or she has all the basic “tools” to create an immune response to a threat. These basic tools come in the form of substances that make up the “non-specific” or “innate” immune system, such as macrophages and neutrophils. What an infant lacks, however, are direct interactions with pathogens that will help them develop “adaptive immunity.” (1)
A large component of a robust immune response is the ability to adapt to any threat. “Adaptive immunity” mainly develops in children. A growing child comes in contact with all kinds of new experiences as he or she navigates the world, and so does his or her immune system.
With each “antigenic experience,” a child develops antibodies and other immune substances to help fight infections, viruses, and other threats in the moment and into the future.
This system of learning and assimilation works amazingly as long as the stressors that a child encounters are not too great and as long as that child’s immune system is able to assimilate new information (such as a new viral threat) and then generate new immune system substances and mechanisms (such as specific B and T cells) in response.
As a parent, you have the ability to help your child’s “innate” and “adaptive” immune system mechanisms be the strongest they can be. You can do this by providing the right nutrition, the right opportunities for both mental and physical exercise, and the right love, care, and nurturing for your child’s vibrant growth.
In addition, you can also make wise choices based on sound research regarding supplementation and other tools to protect your child and his or her still-developing immune system in the face of a highly toxic and stressful world. A key component in your child’s immune system arsenal can be beta glucan!

What is Beta Glucan?
Why beta glucan? According to recent research, beta glucan can work specifically with your child’s immune system to boost its resilience and efficiency on all levels, and with no known side effects to boot. This means that beta glucan can help your child’s immune system fight infection and other pathogenic threats at the time these threats are occurring. At the same time, it can also help your child’s still-developing immune system grow strong so that it can adapt to new incoming threats.
Beta glucan is a polysaccharide substance that is found on the outside of the cell walls of yeasts and some grains. When it is ingested, it has the ability to go straight into the bloodstream via “Peyer’s Patches” in the gut lining. Once in the bloodstream, beta glucan makes a beeline to the immune system, where it rapidly gives direct support to immune mechanisms, placing them on “high alert” and leveling-up immune system substances such as T cells, monocytes, and immunoglobulin levels. (2)
One study on the effectiveness of beta glucan for immune health found that it had the ability to assist the immune system in significantly fighting not only infections and viruses, but also harmful bacteria like Staphylococcus. (3)
Another investigation conducted in part by researchers at Texas Tech University found that “yeast-derived” beta glucan has the ability to rebalance and enhance immune functions related to inflammation. (4)
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Beta Glucan: The Research Says It All
The studies have that covered as well. There are literally dozens of articles that connect beta glucan consumption to better resistance to infection, viruses, and more. Amongst this literature is a growing body of evidence to support the fact that beta glucan can do the same for children, with no known side effects.
One of the first investigations to show significant immune boosting for children was a random, controlled trial conducted by researchers at the University of Louisville in Kentucky. In 2013, the team measured antibody production in children ages 8-12 who had a history of chronic respiratory infections. After 30 days of supplementation with 100 mg/day yeast-derived glucan, mucosal antibody levels rose significantly across the board in comparison to the control group. (5)
Another joint US-China study published in the May 2014 issue of the medical journal Pediatrics focused on immune health in 3- and 4-year-olds. In this random, controlled trial, toddlers were fed a “follow-up formula” (FUF) that contained primarily beta glucan. The end result was pretty remarkable. Those who took the beta glucan missed less time in daycare due to illness.
Did you know that according to 2021 U.S. Centers for Disease Control National Center for Health Statistics data, close to 5% of all American school-age children miss 11 or more days of school because of illness? (6) That number climbs to about 6 % for 12 to 17-year-olds. (7) The researchers of the Pediatrics study also found that not only did beta glucan help boost the immune system, it also helped lower episodes of acute respiratory infection in particular and also had an overall anti-inflammatory effect. (8)