Imagine hearing this at the drive-through: "would you like anti-freeze with that?" Veggie burgers may not have the health benefits you expect.
While some critics say veggie burgers contain chemicals used to fireproof flooring and make anti-freeze, Dr. Neal Barnard told the Bottom Line podcast he doesn't want coconut oil in food.
"My gripe with the Impossible Burger is they mix it up with coconut oil and my own view is that coconut oil is great for shining shoes but you should not swallow it."
But Dr. Barnard won't go as far as those who say don't eat it.
"If a person is eating a beef burger or a chicken burger or a turkey burger and they make a switch to a veggie burger, including the Impossible Burger, that's a good move."
Critics say veggie burgers are two to three times higher in calories than beef burgers.
Dr. Barnard says watch out for the saturated fat in veggie burgers.
"Look at the saturated fat content; you want that to be zero or as close to zero as possible and on Impossible it's 41% of the calories come from saturated fats -- that's the one that snaps your arteries closed."
Dr. Barnard says the reason for veggie burgers is to curb global warming but some experts say cattle are "carbon neutral."