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Kitchen Myths
Facts and fiction about food and cooking
Eating soy products can increase breast cancer risk.
July 10, 2023
Posted by on Soy contains compounds called isoflavones, which mimic some effects of estrogen. Isoflavones were found to stimulate the growth of breast cancer cells in animals, hence the origins of this myth.
But there is no similar effect in humans, and in fact soy products may actually have protective effects regarding breast cancer. Plus, they are excellent sources of certain nutrients including protein and minerals. So, you can munch tofu, tempeh, miso etc. without concern.