Posts Tagged ‘soy products’

Can Tomatoes in Your Diet Lower Breast Cancer Risk?

Wednesday, January 1st, 2014

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A new study to be published in The Journal of Endocrinology & Metabolism concluded that a tomato-rich diet may help protect at-risk postmenopausal women from breast cancer. In the longitudinal cross- over study a group of 70 postmenopausal women were examined for the effects of both tomato and soy-rich diets. Women ate tomato products containing at least 25 milligrams of lycopene daily for 10 weeks. For a separate 10 week period, they ate at least 40 grams of soy protein daily. For two weeks before each test period the women were asked to refrain from eating both tomatoes and soy products.

When they followed the tomato-rich diet the level of adiponectin, a hormone involved in regulating blood sugar and fat levels, climbed 9 percent and this was slightly stronger in women who had a lower body mass index. It is known that breast cancer risk increase in postmenopausal women as their body mass index climbs, and these findings found a diet high in tomatoes had a positive effect on the level of hormones that play a role in regulating fat and sugar. Researchers said “The findings demonstrate the importance of obesity prevention…..Consuming a diet rich in tomatoes had a larger impact on hormone levels in women who maintained a healthy weight.”  On the other hand, the soy diet was linked to a reduction in adiponectin levels in the women in the study/

Does Soy Intake Influence Lung Cancer Survival?

Friday, April 5th, 2013

logo1267406_mdA new study published online in the Journal of Clinical Oncology concluded that Chinese women who consumed more soy before being diagnosed with lung cancer lived longer compared with those who consumed less soy. The researchers said “To our knowledge, this is the first study to suggest an association between high soy consumption before lung cancer diagnosis and better overall survival.” “Although the findings are very promising, it’s too early to give any dietary recommendations for the general public on the basis of this single study.”

The cancer incidence of 74,941 women in the Shanghai Women’;s Health Study was tracked and information about usual dietary intake of soy foods (soy milk, tofu, fresh and dry soybeans, soy sprouts, and other soy products) was collected in person at study enrollment and two years later. Using the Chinese Food Composition Table the soy food and isoflavones content of various food products was calculated.  Four hundred forty four women were diagnosed with lung cancer during the study period and the median time between the first dietary assessment and cancer diagnosis was 5.8 years. Patients were divided into 3 groups according to soy food intake prior to lung cancer diagnosis for analysis. The highest and lowest leveks were equivalent to approximately 4 ounces or more and 2 ounces or less of tofu daily. Those with the highest soy food intake had markedly better overall survival compared with those with the lowest intake–60% of patients in the highest intake group and 50% in the lowest intake group were alive at twelve months after diagnosis.

The risk of death decreased with increasing soy intake until the intake reached a level equivalent to 4 ounces of tofu daily. No additional survival benefits were found by a higher intake. Factors such as a higher soy food intake, lower prevalence of cigarette smoking, and postmenopausal hormone replacement in this population may influence the results when the methodology is applied to a different population. Further research is planned.

Reduce Lung Cancer Risks With Soy Products

Friday, February 12th, 2010

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A new study published in the American Journal of Clinical Nutrition reported that along with stopping smoking a diet rich in soy lowers the risk of lung cancer in men. In addition to previously know soy isoflavones having anticancer properties in breast and prostate cancer the research now extends soy to lung cancer. The researches believe that men who use soy products may also participate in other activities that lower the risk of lung cancer. Although more studies are needed to comfirm these results their results show that non-smoking men who use soy products are less likely to develop lung cancer.