Soy contains protein, isoflavones and fiber, all of which provide health benefits. It was once thought that soy foods increase the risk of breast cancer. However, eating a moderate amount of soy foods does not increase risk of breast cancer — or other types of cancer. Apr 29, · In fact, there is growing evidence that eating traditional soy foods such as tofu, tempeh, edamame, miso, and soymilk may lower the risk of breast cancer, especially among Asian women. Soy foods are excellent sources of protein, especially when they replace other, less healthy foods such as animal fats and red or processed meats. Soy foods have been linked to Author: Stacy Simon.
This means observational studies can't conclusively prove that soy protects against breast cancer. However, these studies are reassuring in affirming that soy foods do not increase breast cancer risk. They point toward a protective effect of soy on breast health, regardless of other lifestyle and diet choices. Food First. Dec 26, · Evidence concerning the impact of soy protein isolate on breast cancer risk consists of animal studies and human experiments. Population studies concerning any possible association between soy protein isolate and risk of breast cancer are not available, which is especially unfortunate since experimental studies have produced conflicting findings.
Jun 12, · While laboratory studies on soy compounds in isolation have sparked questions about a possible connection, studies of breast cancer patients in China and Japan have not shown any increased breast cancer risk resulting from soy consumption. There is a biological basis for this line of inquiry. “Soy has what are called phytoestrogens,” Chen says.