Okla. Stat. tit. 63, § 63-1-1112: Adding substances to food

Any poisonous or deleterious substance added to any food, except

where such substance is required in the production thereof or cannot

be avoided by good manufacturing practice, shall be deemed to be

unsafe for purposes of the application of clause (2) of Section

1109(a) of this article, but when such substance is so required or

cannot be so avoided, the State Board of Health shall promulgate

reasonable rules and regulations limiting the quantity therein or

thereon to such extent as the Board finds necessary for the

protection of public health, and any quantity exceeding the limits

so fixed shall also be deemed to be unsafe for purposes of the

application of clause (2) of Section 1109(a) of this article. While

such reasonable rules and regulations are in effect limiting the

quantity of any such substance in the case of any food, such food

shall not, by reason of bearing or containing any added amount of

such substance, be considered to be adulterated within the meaning

of clause (1) of Section 1109(a) of this article. In determining

the quantity of such added substance to be tolerated in or on

different articles of food, the Board shall take into account the

extent to which the use of such substance is required or cannot be

avoided in the production of each such article and the other ways in

which the consumer may be affected by the same or other poisonous or

deleterious substances.