The beneficial effect of soya foods on heart disease, some cancers, osteoporosis,and monopausal symptoms is the focus of much research.
There is great deal of epidimiogical evidence supporting the health protective effects of soya.For example populations thatinclude high amount of soya in their diet have low rates of breast cancer,prostate cancer, and menopausal symtoms. Howevwr the evidence is stronger for some health benefits than for other.
soya protien can reduce the risk of heart disease . This is because soya have lower level of the artery clogging LDLcholesterol with out reducing levels of beneficial HDL cholesterol.High in soya protien indicating that foods may help lower the risk of heart disease
Soya foods contain compounds called isoflavones,which are a subclass of much larger group of food component called flaonoids. Genistein and daiazein are the main types of isoflavones which reduce the effect of estogen on breast and prostate tissue. Esrogen is thought to stimulate tumor growth in genetically susceptible people.
Recent research has in dicated that soya isoflavones may delay bone loss and might even build bone density . Not all research is consistent in this finding how ever,wit some studies showing no effect of soya on bone loss.
Some women, diets rich in soya foods can reduce menopausal symptoms, particularly the freqency of improvement however varies from woman to woman.