http://jb.oxfordjournals.org/cgi/content/abstract/139/1/81
Foods found to be rich in polyamines included 1) wheat germ, 2) rice bran, 3) black rice, 4)Philippine mango, 5)green pepper, 6)Japanese pumpkin, 7)nuts, 8)fermented pickles, 9)pond smelt, 10)turban shell viscera, 11)whelk viscera...