What are the Effects of the Hops Phytoestrogen in Beer? TOPICS:BeerBreast CancerHopsPhytoestrogenSoy Posted By: youmongus July 29, 2016 When it comes to breast cancer risk, does the phytoestrogen in beer act more like the animal estrogens in Premarin, or the protective phytoestrogens in soy? Video Source: NutritionFacts.org