1. Huser S, Guth S, Joost HG, Soukup ST, Kohrle J, Kreienbrock L, Diel P, Lachenmeier DW, Eisenbrand G, Vollmer G, Nothlings U, Marko D, Mally A, Grune T, Lehmann L, Steinberg P, Kulling SE: Effects of isoflavones on breast tissue and the thyroid hormone system in humans: a comprehensive safety evaluation. Arch Toxicol. 2018 Sep;92(9):2703-2748. doi: 10.1007/s00204-018-2279-8. Epub 2018 Aug 21. [PubMed:30132047 ]
  2. Nielsen IL, Williamson G: Review of the factors affecting bioavailability of soy isoflavones in humans. Nutr Cancer. 2007;57(1):1-10. doi: 10.1080/01635580701267677. [PubMed:17516857 ]