Beta-glucan is a long-chain polysaccharide. One of its basic elements is glucose (simple sugar) bound to carbon 1 and 3. Smaller lateral chains are branching off the main polysaccharide chain on carbons 1 and 6. And it is this particular form of ß-1,3/1,6-D-glucan which shows the best immunostimulating features.

Glucose units are bound in large molecules in such way that they create sugar that provides energy for the activity of immune cells instead of energy for muscle activity.