...on page 10. It says: To safeguard the public health, no poisonous or deleterious substance shall be added to any food except where such substance is required...in the production thereof or cannot be avoided by gooil muntifacturing practice. It goes on to say : In determining the quantity of such added substance...

...State or Territory." §346. Tolerances for poisonous or deleterious substances in food ; regulations. Any poisonous or deleterious substance added to any...unsafe for purposes of the application of clause (2) (A) of section 342 (a) of this title; but when such substance is so required or cannot be so avoided,...

...section 41 of this title. §346. Tolerances for poisonous or deleterious substances in food; regulations Any poisonous or deleterious substance added to any...be unsafe for purposes of the application of clause (2KA) of section 342(a) of this title; but when such substance is so required or cannot be so avoided,...

...construed and defined." 246 F. 2d, at 862. 7 52 Stat. 1049, 21 USC § 346 (a), which provides: "(a) Any poisonous or deleterious substance added to any...or cannot be avoided by good manufacturing practice shnll be deemed to be unsafe for purposes of the application of clause I2) of Section 402fn) : but...

...poisonous substance was add ed » ) (2) Prohibits the addition of poison to food except where such addition is required in the production thereof or cannot be avoided by good manufacturing practice; where added poisons are so required or cannot be so avoided, tolerances are authorized limiting the...

...not ordinarily reiider it injurious to health; and 2. When the addition of a poison or deleterious substance is required in the production thereof or cannot be avoided by good manufacturing practice, the department shall promulgate regulations limiting the quantity therein or thereon to such extent...

...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 402 (a). While such a regulation is in effect limiting the quantity of any such substance in the case of any...

...that section 406 (a) which is appended to my statement. The opening statement of that section reads : Any poisonous or deleterious substance added to any...in the production thereof or cannot be avoided by food manufacturing practice shall be deemed to be unsafe for the purposes of the application of section...

...that section 406 (a) which is appended to my statement. The opening statement of that section reads : Any poisonous or deleterious substance added to any...in the production thereof or cannot be avoided by food manufacturing practice shall be deemed to be unsafe for the purposes of the application of section...

...... if it bears or contains any added poisonous or added deleterious substance . . . [which is not] required in the production thereof or cannot be avoided by good manufacturing practice. . . ." Since all the drug ingredients mentioned previously must be classified as "toxic or deleterious...