Miso, however, was not associated with increased cancer risk.27 The carcinogenic effects of the salt may be counteracted by the anticarcinogenic effects of the soy. For example, tofu intake has been associated with about 50 percent less stomach cancer risk28 and salt with about 50 percent more risk,29 which explains how they may effectively cancel each other out. Further protection apparently offered by allium (onion) family vegetables30 may tip the cancer-fighting scale in favor of miso soup that’s garlicky or has some scallions thrown in.
