 The stock might include ingredients such as "negi", carrot, potato and "daikon" radish.In some versions of the dish, chicken stock, Western-style fish stock, and other non-"dashi" bases can even be used, but there is some debate over whether or not miso soups made using these non-traditional bases count as true miso soup.According to Japanese custom, the solid ingredients are chosen to reflect the seasons and to provide contrasts of color, texture, and flavor.