Lectins are a type of protein that can bind to cell membranes. They are sugar-binding and become the “glyco” portion of glycoconjugates on the membranes. Lectins offer a way for molecules to stick together without getting the immune system involved, which can influence cell-cell interaction.
Lectin is associated with leptin resistance. ... Perhaps most insidious of all is that lectins cause leaky gut. When they damage the lining of your gut, other proteins from food you eat enter your bloodstream and program your immune system to attack other parts of your body.