The 42nd Annual Scientific Meeting of the Nutrition Society of Australia was held in Canberra, Australia from November 27 to 30, 2018. The theme of the meeting was Nutrition Science: The nexus between health policy and practice. Abstracts were submitted from 21 countries. Two-hundred-and-forty-four registrants attended the conference and 175 papers were presented consisting of 14 plenary, 77 oral and 84 poster presentations. This issue presents the proceedings of this meeting in the form of abstracts for papers presented at the conference.