Is Beta-1,3D Glucan Effective?

The immune-enhancing properties of yeast cell walls were reported in 1939.
In the 1960's the researchers identified beta 1,3 glucan as the immune stimulating component.

Check out the official abstracts (reprinted in their entirety) or representative published studies conducted on beta 1,3 glucan. These abstracts are intended to provide a balanced view of the available scientific information related to beta glucan. Beta Glucan Research