Can consuming phytoestrogens worsen the effects of estrogen dominance?

Nope! What happens is the plant estrogens compete for the stronger estrogens that are creating a problem, and so they're more protective. They help balance the estrogen ratios because you have three different estrogens and it puts you in a better place, estrogen-wise, in a more protective against cancer place, and so no it's not going to make things worse at all. And this is why if someone does have estrogen dominance, we recommend things like cruciferous vegetables, because a lot of the properties are they have phytoestrogens, and this is also why I would recommend flaxseed oil, and it just so happens that these phytoestrogens are basically anti-carcinogenic.