What safety studies have been done for SoyLife®?

Steinberg et al. 2011, USA Clinical outcomes of a 2-y soy isoflavone supplementation in menopausal women.” Am J Clin Nutr 2011;93:356-67

Bolca et al 2009 Belgium “Disposition of soy isoflavones in normal human breast tissue.” Am. J. Clin. Nutr. Doi: 10.3945/ajcn.2009.28854.

Maskarinec et al 2009 USA “Various doses of soy isoflavones do not modify mammographic density in postmenpausal women.” J. Nutr. 139 (2009)