Soy components and cancer protection

Animal and test tube studies have shown that soy protein containing foods or soy isoflavones* can protect against the development of cancers2. Isoflavones inhibit the action of key enzymes and growth factors required for cancer cell growth ^{2 , 18 , 19} .

Although isoflavones have been the primary focus, researchers have identified further components of soy that can also act as anti-carcinogens. These include phytic acid, trypsin inhibitors and saponins ²⁰ . These natural phytonutrients are also found widely in other whole plant foods such as wholegrains and/or nuts, although legumes tend to contain higher levels.