Lin, L. C., Que, J., Lin, K. L., Leung, H. W., Lu, C. L., and Chang, C. H. Effects of zinc
supplementation on clinical outcomes in patients receiving radiotherapy for head and neck cancers: a double - blinded randomized study.
In fact, some have shown benefits, such as a 2010 study
on menopausal women, who were administered soy isoflavones for two years, which concluded that «soy and soy isoflavones may provide a mild benefit to hot flashes, lipids, and bone health for some menopausal women» (
Clinical outcomes of a 2 - y soy isoflavone
supplementation in menopausal women Am J Clin Nutr February 2011 93: 356 - 367)