The false and misleading advertising of mellorine is prohibited. An advertisement of mellorine shall be deemed to be false and misleading if in such advertisement representations are made or suggested by statement, word, grade, designation, design, device, symbol, sound, or any combination thereof that such mellorine is a dairy product; except, that nothing contained in this section shall prevent a truthful, accurate, and full statement in any such advertisement of all the ingredients in such mellorine.