Glutamate is found in breastmilk, seaweed, tomatoes, scallops, anchovies, cheese, soy sauce, cured ham and many more foods. Inosinate is found mainly in fish – dried bonito and dried sardines. It starts to form as soon as a fish dies, reaching a maximum level about ten hours later. Guanylate is found mainly in dried shiitake and other mushrooms, forming from the breakdown of DNA in dying cells.
