Beta-glucan is a type of soluble fiber that is found in the cell walls of grains such as oats, barley, and mushrooms. Beta-glucan is often used in dietary supplements due to its potential health benefits, such as supporting immune system function, promoting heart health, and improving blood sugar control.
Beta-glucan is generally considered safe for consumption, and it is a common ingredient in many dietary supplements. However, excessive intake of beta-glucan supplements may cause digestive discomfort such as bloating or gas.