"Soy is a protein-rich, plant-based food that has a bad reputation for promoting breast cancer and other types of cancers," Rose said. "This is because soy contains isoflavones, which were once thought to promote the proliferation of cancer, but evidenced-based scientific research has debunked this myth. The concentration of isoflavones is not high enough to promote cancer, and the benefits of eating soy-based foods actually outweigh the risk."