The latest Gallup poll also finds increased political polarization. Some 60% of Democrats said abortion should be legal under any circumstances, compared with 8% of Republicans.
The increase in nonwhite Americans identifying as vegetarian and eating less meat is part of the longstanding work of vegan activists of color to make plant-based eating more accessible.
The Gallup poll, conducted after the leak of a draft Supreme Court opinion that would overturn Roe v. Wade, says that 55 percent of Americans now identify as pro-choice, up from 49 percent last year.
The rise in support stems largely from a majority of Republicans, who for the first time back same-sex marriage at 55%, according to Gallup.
For the first time since Gallup began asking the question in 1937, fewer than half of U.S. adults interviewed said they belonged to a church, synagogue or mosque. That figure is down from 70% in 2000.