Isomalto-oligosaccharide is a food ingredient that is added to various foods as either powder or a syrup. Chemically, IMO is a mixture of glucose oligomers with alpha-(1-6)-linkages such as isomaltose, panose, isomaltotriose, and isomaltopentose. The majority of glucose oligosaccharides found in IMO consist of 3-6 monosaccharide units linked together, however disaccharides as well as longer polysaccharides (up to 9 units) are also present.