The global beta-glucan market size valued USD 379.2 million in 2021 and expected to reach USD 636.2 million by 2028, at a CAGR of 7.8% during the forecast period 2022-2028.Glucan is a group of glucose polymers that can be classed as alpha or beta linked depending on its interchangeable linking. Beta glucan is a diverse group of Nan starch polysaccharides that is attached to D-glucose monomer. In generally, beta Glucan refers to the sugars present in the cell walls of bacteria, fungus, yeast, and plants like oats and barley. There is some indication that beta glucan has health advantages which is used to build immunity, diabetes, and cancer, among other things. Beta glucan has a number of advantages and health benefits, including the ability to help with asthma, allergies, diabetes, and other illnesses.