Conflicts of interest for members of the US 2020 dietary guidelines advisory committee.

Objectives: To measure incidence of conflicts of interest (COI) with food and pharmaceutical industry actors on the advisory committee for the 2020-2025 US Dietary Guidelines for Americans (DGA) and assess the adequacy of current mechanisms to disclose and manage COI among the committee's members.

Design: We compiled longitudinal data from archival sources on connections between members of the DGA's advisory committee and actors. We hypothesised that these committee members, who oversee the science for the most influential dietary policy in the USA, might have significant COI that would be relevant to their decision making.