The owners of a celebrated chain of vegan restaurants say they have received death threats after admitting that they had given up veganism to return to meat eating.
Matthew and Terces Engelhart, whose meat-free Cafe Gratitude chain has gained a celebrity status among vegans to match that of some of its Hollywood clients, also disclosed that they had begun breeding and slaughtering animals at their Be Love farm in northern California.
Now their revelations - first made in a blog written last year - have triggered an angry online campaign after animal rights activists belatedly discovered the 2015 post.
A Facebook page called Boycott Cafe Gratitude and Gracias Madre - another vegan restaurant the couple opened in San Francisco - has attracted hundreds of likes while protesters have posted a spate of one-star reviews of the restaurants on Yelp.
There have also been attacks on Twitter and a protest last weekend outside one of the outlets in Los Angeles' Larchmont Village district. Footage of what appeared to be the protest on the Facebook page showed demonstrators chanting slogans including "animals are individuals, just like us" and "money is no excuse".