Impossible Burgers and Man Boobs

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Published Jan 2, 2020

One of the more interesting queries to land in our inbox this past week asked, “Do Impossible Whoppers really contain enough estrogen to cause male breast growth?”

For those who may not know, the Impossible Whopper is Burger King’s meatless alternative to the Whopper. It uses a soy protein-based patty that many people say tastes just like beef.

According to a livestock industry publication, it also contains enough of the sex hormone estrogen that it will “grow boobs on a male” if he eats four Impossible Whoppers daily.’s Alex Kasprak is on the case.

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