Lectins are carbohydrate-binding proteins. They have been around for thousands of years. Through trial and error, any animal, including man, learned how to avoid the ones that made them feel bad, and eat the ones that didn't. For a detailed discussion of lectins purchase the book, The Plant Paradox by Steven Gundry, MD. There is a specific lectin that has gained a lot of attention these days, but is really just a minor player: gluten . Many people assume that manufactured foods that are called "gluten-free" are also grain free. Not so. Where wheat, barley, and rye are eliminated, when you look at ingredients, you will probably find they have been replaced with corn, rice, or teff; which all contain forms of lectins similar to gluten. Other products often found in them may include soy or other bean flours, which of course also contain lectins. This being said, the thing most people (including me) miss when eating a lectin free diet are g