These Regulations are made in exercise of the powers conferred by sections 8(1) and 23 of, and paragraph 21 of Schedule 7 to the European Union (Withdrawal) Act 2018 (c. 16) in order to address failures of retained EU law to operate effectively and other deficiencies (in particular under paragraphs (a) to (d), (f) and (g) of section 8(2) of that Act), and to make consequential and supplementary provision arising from the withdrawal of the UK from the European Union, and make consequential and supplementary provision relating to the withdrawal.
Link: The Nutrition (Amendment etc.) (EU Exit) Regulations 2019
Source: Legislation .gov.uk
