Plant-based burgers will make men grow boobs, Livestock News reports
arstechnica.com
arstechnica.com
That being said, a lot of vegetarian and (especially) vegan options do contain soy which is suspected of mimicking estrogen in the human body.
I ate a whooper a day at lunch for a year. Boobs, belching and otherwise ill-health followed.
Culturally, that is a type of false fear tactic used by some parents to get their unruly children to avoid a behaviour.