Many of the therapies used by a naturopath, such as the use of nutritional supplements, herbs, foods, homeopathic preparations, and such physical forces as heat, cold, water, touch, and light, are not the exclusive privilege of naturopaths, and their use, practice, prescription, or administration by individuals not licensed to practice naturopathic medicine is not prohibited by this chapter. This chapter does not restrict or apply to the scope of practice of any other profession licensed, certified, or registered under the laws of this state.