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.
Fruits and Vegetables. Tomatoes contain lectin, and so do potatoes, sweet potatoes, zucchini, carrots, rhubarb, beets, mushrooms, asparagus, turnips, cucumbers, pumpkin, sweet peppers and radishes.Citrus fruits, such as oranges, lemons and grapefruit, provide lectin.hoto Credit Tharakorn/iStock/Getty Images. Lectins, a type of protein found in many plant foods, can cause damage to the lining of your gastrointestinal tract or your organs and interfere with metabolism when consumed in large amounts, according to a study published in Toxicon in September 2004.