In the past, there has been some controversy over the consumption of soy because of concern its estrogen-like properties could increase the risk of the most common form of breast cancer, hormone receptor-positive breast cancer.
Women were then divided into five groups based on the inflammatory scores for their high school diets.
'We found a strong link between the Mediterranean diet and reduced oestrogen-receptor negative breast cancer risk among post-menopausal women, even in a non-Mediterranean population'. After nine years, those women who consumed high amounts of isoflavones had a risk lower by 21 percent of dying than those who consumed lower amounts or no amounts at all.
Therefore, Dr. Zhang and her team set out to examine isoflavone intake in 6,235 women diagnosed with breast cancer from the US and Canada.
Refined sugars and saturated fat are kept to a minimum. An adolescent and early adulthood dietary pattern associated with inflammation and the incidence of breast cancer. In that study, the authors evaluated the association between daily consumption of natural isoflavones and all-cause mortality in 6,235 Canadian and United States women with breast cancer. Soy is good in general for people to eat but breast cancer survivors should not try to take supplements for a bigger intake of substances found in soy.
"Other research has suggested that the oestrogen-like effects of isoflavones may reduce the effectiveness of hormone therapies used to treat breast cancer", she said.
PSA Group, GM announce Monday morning press conference
There was also the matter of potential job losses, but PSA has made the promise to "respect the existing agreements". GM has been struggling to make money in Europe for years and almost sold a majority stake the unit in 2009.
The study, led by nutrition and cancer epidemiologist Fang Fang Zhang, M.D., Ph.D., from the Friedman School of Nutrition Science and Policy at Tufts University, was published March 6 in Cancer.
Around 40 per cent of all cancers are linked to lifestyle, with breast cancer risks heightened by excess weight, poor diet, alcohol and smoking. However, high amounts of isoflavone did not associate with higher mortality in women who did receive hormonal therapy.
This drop in the mortality risk was noticed only in women who had hormone receptor-negative cancer and women who had not been taking anti-estrogen therapy such as tamoxifen.
"For women with hormone receptor-negative breast cancer, soy food products may potentially have a protective effect", she said.
Researchers in this most recent study concluded that 870 of the women who completed the high school food frequency questionnaire were diagnosed with premenopausal breast cancer and 490 were diagnosed with postmenopausal breast cancer. "Our findings suggest that survival may be better in patients with a higher consumption of isoflavones from soy food", John said.