Tofu
Soy milk that has been coagulated is pressed into firm, white blocks to create tofu. It is a well-liked plant-based protein source, especially in vegan and vegetarian diets.
Additionally, it is a high source of phytoestrogens, primarily isoflavones.
One of the soy products with the highest isoflavone content is tofu. Additionally, even though soy milk has lower levels of isoflavones, it’s still a decent source.
Wheat bran
Wheat bran is another food that has a high level of phytoestrogens, particularly lignans. Based on an animal study, there is a hypothesis which suggests that milling wheat bran into very tiny “micronized” particles can cause it to increase the estrogen levels in the blood more effectively when eating. But ultimately, more research is needed to understand wheat bran’s effect on circulating estrogen levels in humans.