Mannans are a type of polysaccharide, which are long chains of sugar molecules. They are primarily found in the cell walls of certain plants, fungi, and algae. Mannans play a crucial role in providing structural support and can also be involved in various biological processes, such as cell signaling and immune responses. In addition to their natural occurrence, mannans are used in various industries, including food and pharmaceuticals. They can serve as thickening agents, stabilizers, or emulsifiers. Mannans are also studied for their potential health benefits, including their role in gut health and as prebiotics, which support the growth of beneficial gut bacteria.