; (ii) have a prominent design that visually contrasts with existing packaging design; and (iii) be sufficiently large to be easily legible. (3) In promulgating regulations regarding the interpretive nutrition information required under subparagraph (1) and the standardized symbol system required under subparagraph (2)(A), the Secretary shall take into account published reports by the Health and Medicine Division of the National Academy of Sciences, Engineering, and Medicine regarding interpretive nutrition information, and base regulations on the following principles: (A) Consumers should be able to quickly and easily comprehend the meaning of the system as an indicator of a product’s contribution to a healthy diet without requiring specific or sophisticated nutritional knowledge. (B) The nutrition information should be consistent with the Nutrition Facts Panel and with the recommendations of the Dietary Guidelines for Americans. (C) The information should aim to facilitate consumer selection of healthy product options, including among nutritionally at-risk subpopulations. (4) The Secretary should periodically evaluate the standardized symbol system required under subparagraph (2)(A) to assess its effectiveness in facilitating consumer selection of healthy product options and the extent to which manufacturers are offering healthier products as a result of the disclosure. (5) The implementation of this paragraph should be accompanied by appropriate consumer education and promotion campaigns determined by the Secretary. . (b) Percentage of wheat and grains in grain-Based products, and amount of real fruit, vegetable, and yogurt in products bearing fruit, vegetable, and yogurt claims Section 403 of the Federal Food, Drug, and Cosmetic Act, as amended by subsection (a), is further amended by adding at the end the following: (aa) If, in the case of food other than a dietary supplement, the principal display panel bears— (1) the term whole wheat , whole grain , made with whole grain , or multigrain