A group of UCLA medical students and activists from Single Payer Action on Friday urged shoppers at a Whole Foods in Los Angeles to boycott the store.

Carrying signs saying “Don’t Shop While Americans Drop,” “CEO Mackey is Wacky,” and “Full Care for All,” the students said they were boycotting Whole Foods in response to Whole Foods CEO John Mackey’s op-ed in the Wall Street Journal arguing that there should be no American right to health care.