Nurses' use of 'wellness' supplements during the COVID-19 pandemic in the United States.

Aim: Quantify disparities and identify correlates and predictors of 'wellness' supplement use among nurses during the first year of the pandemic.

Design: Longitudinal secondary analysis of Nurses' Health Studies 2 and 3 and Growing Up Today Study data.

Methods: Sample included 36,518 total participants, 12,044 of which were nurses, who completed surveys during the first year of the COVID-19 pandemic (April 2020 to April 2021).