As David J. Hufford, Professor and Director at the Doctors Kienle Center for Humanistic Medicine at the Penn State College of Medicine, has argued: "Simply because an herbal remedy comes to be used by physicians does not mean that herbalists cease to practice, or that the practice of the one becomes like that of the other."
Som David J. Hufford, professor og leder af Doctors Kienle Center for Humanistic Medicine på Penn State College of Medicine, har hævdet: "Bare fordi en naturmedicin bliver brugt af læger, betyder det ikke at naturopater stopper med at praktisere, eller at praksissen fra den ene, bliver ligesom den anden."