what are endotoxins?
The Impact of Endotoxin on the Human Body Definition of Endotoxin. Endotoxin is a form of sugar. It is a structure composed of lipids and sugar complexes. This structure is called a lipopolysaccharide or LPS. This structure is a necessary component for gram negative bacteria to maintain cell wall integrity. It is a major component of their cell wall and is important for their survival.