Beta-glucans are a type of polysaccharide. Polysaccharides are large molecules made up of multiple sugar units linked together. Beta-glucans, specifically, are polysaccharides made of glucose (sugar) molecules linked together in a specific way, forming a chain-like structure.
Beta-glucans are commonly found in the cell walls of certain fungi, including mushrooms (such as shiitake and maitake) and yeast, as well as in some grains like oats and barley. They are known for their immune-modulating properties and have been studied for their potential health benefits, particularly in supporting the immune system.
The unique structure of beta-glucans allows them to interact with the immune system, influencing various immune cells and processes. As a result, beta-glucans are often used as dietary supplements to promote immune health.