What is the science behind soys health benefits?

Soy isoflavones are responsible for most of soys health benefits. Studies have shown isoflavones are true multi-taskers, tackling everything from promoting heart health, alleviating hot flashes associated with menopause, increasing bone density, and lowering the risk of prostate, colon and breast cancers. In addition, protein-rich soy foods may help you lose weight and fat when substituted for other sources of protein.