The provisions of this chapter shall not affect the applicability of the Federal Food, Drug, and Cosmetic Act [
21 U.S.C.
301 et seq.] or the Fair Packaging and Labeling Act [
15 U.S.C.
1451 et seq.] or other Federal laws to eggs, egg products, or other food products or diminish any authority conferred on the Secretary of Health and Human Services or other Federal officials by such other laws, except that the Secretary of Agriculture shall have exclusive jurisdiction to regulate official plants processing egg products and operations thereof as to all matters within the scope of this chapter.