A lot of food nowadays contains a lot of Phytoestrogen. These chemicals cause the hormone Balance to go out of wack and make men produce a lot more estrogen without balancing it with their own testosterone production and “feminizing” them. Do such compounds exist for test? And if so, what foods contain them?
Phytoestrogens really don’t activate strongly in the human body, and research has completely failed to show them causing “feminization” in men in a consistent and replicable matter (in fact, research with soy tends to show the opposite - soy increases testosterone).
So the premise of the question is flawed.
Excess testosterone is, counter-intuitively, what you want to avoid to reduce estrogen, should you wish to do so. It’s very normal for men to have some level of estrogen in circulation (although somewhat less than women), and for women to have some testosterone (although much much less than men) - And, excess testosterone gets converted into estrogen. It affects a lot of people on steroids, but steroids tend to overwhelm the conversion system so they deliver a little more estrogen and a boatload more testosterone, essentially.
Testosterone conversion is done by fat cells, so avoiding being fat tends to help, but losing weight deflates those cells, not destroys them - at least immediately - So it’s not quite so easy.
There are a few plants which produce phytoandrogens, but none are especially common as food crops as far as I know. The closest one would be Brazilian ginseng/suma root. As far as I’m aware, there’s also no scientific evidence that eating it affects hormone response in a way that matters either.