Indiana Code Title 16. Health § 16-18-2-136

Sec. 136.  (a) “Food additive”, for purposes of IC 16-42-1 through IC 16-42-4, means any substance the intended use of which results or may be reasonably expected to result, directly or indirectly, in its becoming a component or otherwise affecting the characteristics of any food (including any substance intended for use in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, and including any source or radiation intended for any such use) if the substance is not generally recognized among experts qualified by scientific training and experience to evaluate its safety, as having been adequately shown through scientific procedures (or, in the case of a substance used in a food before January 1, 1958, through either scientific procedures or experience based on common use in food) to be safe under the conditions of the substance's intended use.

(b) The term does not include any of the following: