RFML seems from United Airlines, and seems to mean: easy to digest. No egg, no dairy, probably no meat? Its for people from places where food isn't processed or

RFML seems from United Airlines, and seems to mean: easy to digest. No egg, no dairy, probably no meat? Its for people from places where food isn't processed or where they had not eaten much for a longer time, so a change in diet content and quantity may be problematic for the passenger.