Iowa Admin. Code r. 21-42.2
42.2(2) The information which is required to appear in the “Guaranteed Analysis” shall be listed in the following order unless otherwise specified in these rules:
Crude protein (minimum percentage)
Crude fat (minimum percentage)
Crude fiber (maximum percentage)
Moisture (maximum percentage)
Additional guarantees shall follow moisture.
42.2(11) The label of a pet food shall not contain an unqualified representation or claim, directly or indirectly, that the pet food therein contained or a recommended feeding thereof is or meets the requisites of a complete, perfect, scientific or balanced ration for dogs or cats unless such product or feeding:
42.2(12) Labels for products which are compounded for or which are suitable for only a limited purpose (e.g., a product designed for the feeding of puppies) may contain representations that said pet food product or recommended feeding thereof is or meets the requisites of a complete, perfect, scientific or balanced ration for dogs or cats only:
b. Such qualified representations may appear on pet food labels only if:
42.2(14) The label of a dog or cat food (other than one prominently identified as a snack or treat as part of the designation required upon the principal display panel under subrule 42.2(10)) shall bear, on either the principal display panel or the information panel (as those terms are defined in 21 CFR 501.1 and 501.2, respectively), in type of a size reasonably related to the largest type on the panel, a statement of the nutritional adequacy or purpose of the product. Such statement shall consist of one of the following:
a. A claim that the pet food meets the requirements of one or more of the recognized categories of nutritional adequacy: gestation, lactation, growth, maintenance, and complete for all life stages, as those categories are set forth in subrules 42.2(11) and 42.2(12). The claim shall be stated as one of the following:
42.2(17) A signed affidavit attesting that the product meets the requisites of 42.2(11) or 42.2(12) shall be submitted to the secretary upon request.
1To the extent that the product’s ingredients provide nutrients in amounts which substantially deviate from those nutrient requirements estimated by such a recognized authority on animal nutrition, or in the event that no estimation has been made by a recognized authority on animal nutrition of the requirements of animals for one or more stages of said animals’ lives, the product’s represented capabilities in this regard must have been demonstrated by adequate testing.