As presented by Dr. Vetvicka of the University of Louisville in Kentucky, β1, 3-glucan’s positive effects on the immune system have been well documented for over 40 years. Numerous studies - currently more than 1,600 with substantiating publications disclosing the results of these studies - have subsequently shown that β1, 3-glucans exhibit antibacterial and anti-tumor activities.
β-glucans are generally considered to be potent stimulators of cellular immunity, but Glucan #300 showed higher effects than the rest of the glucans, because it induces a broader range of defense reactions to include the tobacco cells. Most of the tested glucans revealed some level of stimulation not only to the immune system, but also affected a response to antibodies.
Much data from studies comparing the differences in activities among individual types of glucans have also been presented. It is apparent that individual glucans can be highly active in one particular part of immune and almost without any significant biological activity in other parts of defense reaction. However, Glucan #300 showed a broad range of action in all tested reactions.
Not all glucans are created equal and some have surprisingly low activity. It is more imperative to find a glucan from a solid vendor who is able to back the claims with solid scientific data. Thinking about the biological source of glucan is much less important.