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.
That said, certain lectins have more potent toxic or allergenic effects, 10 and the lectins found in beans fall into this category. Lectins and Their Harmful Effects Among the most problematic lectin-containing foods 11, 12 are wheat and other seeds of the grass family, 13 beans, soy and other legumes, peanuts, and members of the nightshade family 14 such as eggplants, potatoes, tomatoes and peppers.