However,  a priori  is sometimes used to modify other nouns, such as truth. Philosophers also may use apriority and aprioricity as nouns to refer (approximately) to the quality of being  a priori .
Lectins are drawn right to that lining, and your immune system retaliates. Lectins are found in all foods, but in some more than others. All seeds of the grass family - wheat, rye, rice, spelt, etc. - are high in lectins. You also find lectins in beans, dairy and in the nightshades (tomatoes, potatoes, eggplant). According to a 1991 study, dairy may be potentially more harmful in pasteurized, processed milk because of the reduction of SIgA, an immunoglobulin that binds dangerous lectins.
Lectins and Foods that Cause Leaky Gut. Lectins are found in many foods, not just grains, and consumed in smaller amounts, your body will do just fine with them. But foods that have large amounts of lectins are more problematic. Some of the lectins and foods that cause leaky gut include wheat, rice, spelt and soy.