Evidence supporting the use of: Soybean
For the body system: Breasts

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Table of Contents

Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Soybean is sometimes used to support breast health due to its high content of isoflavones, which are plant-derived phytoestrogens. These compounds can weakly bind to estrogen receptors in the body and may exert mild estrogenic or anti-estrogenic effects. The rationale for using soy is based on observations that populations with high soy intake, such as some East Asian groups, have lower rates of breast cancer compared to Western populations. However, scientific evidence directly supporting the use of soybeans or soy isoflavones to benefit the breast body system (e.g., for breast health or to prevent breast cancer) is mixed and not definitive.

Some epidemiological studies suggest that consuming soy foods during adolescence may lower the risk of developing breast cancer later in life, but clinical trials in adults have yielded inconsistent results. While moderate soy intake appears safe for most women, including those with a history of breast cancer, authoritative bodies like the American Cancer Society and the World Cancer Research Fund state that evidence is not strong enough to recommend soy specifically for breast health or breast cancer prevention. As such, the scientific evidence supporting soy for this purpose is considered limited (rated 2/5), and its use should not substitute for established medical advice or screening practices.

More about soybean
More about Breasts