Humans are exposed to myriad chemicals simultaneously. Based on their sources, many of these chemicals co-occur, leading to high correlations between certain chemical concentrations. For example, individuals who live in urban areas may have higher exposures to air pollutants relative to residents of rural areas,1 and those who eat fish and red meat may have elevated levels of PFAS and mercury relative to those who eat these foods less frequently.2–4 Identifying behavioral patterns that reflect unique groups of multipollutant exposures may be useful as an intervention aimed at exposure reduction because regulations and policy changes to remove specific chemicals from commence take years. Ascertaining upstream sources of chemical exposures is also useful for risk assessment because this may allow us to identify the most vulnerable populations.