; (2) by striking and if the food purports and inserting , (3) if the food purports ; and (3) by inserting , and (4) if the food is food other than a dietary supplement and contains at least 10 milligrams of caffeine from all sources per serving, a statement (with appropriate prominence near the statement of ingredients required by this paragraph) of the number of milligrams of caffeine contained in one serving of the food and the size of such serving after vegetable juice contained in the food . 8. Food allergen labeling (a) In general Section 201(qq) of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 321(qq) ) is amended by adding at the end the following: (3) Any other food ingredient that the Secretary determines by regulation to be a major food allergen, based on the prevalence and severity of allergic reactions to the food ingredient. . (b) Update to Compliance Policy Guide Not later than 2 years after the date of enactment of this Act, the Secretary of Health and Human Services shall update the Food and Drug Administration's Compliance Policy Guide, section 555.250, to conform with applicable laws related to major food allergens and gluten-containing grains, including requirements under sections 9 and 10 of this Act. 9. Information about major food allergens and gluten-containing grains (a) In general Section 403(w) of the Federal Food, Drug, and Cosmetic Act ( 21 U.S.C. 343(w) ) is amended— (1) in subparagraph (1)(A), by striking is printed immediately after or is adjacent to the list of ingredients (in a type size no smaller than the type size used in the list of ingredients) required under subsections (g) and (i) and inserting is printed as specified in subparagraph (8) ; (2) in subparagraph (1)(B), by striking in the list of ingredients required under subsections (g) and (i) and inserting as so printed ; (3) in subparagraph (3), by striking The information and inserting Subject to subparagraph (8)(B), the information