DEEM-FCID/Calendex software incorporates food consumption data from the National Health and Nutrition Examination Survey/“What We Eat in America” (NHANES/WWEIA) dietary survey. The DEEM-FCID component of DEEM-FCID/Calendex can be used to estimate dietary intake of any component of food or water including toxicants, pesticides, and natural constituents to perform acute and chronic dietary exposure assessments. The Agency uses the DEEM-FCID component to conduct dietary risk assessments to support the establishment of tolerances for residues of pesticides in/on raw agricultural and processed commodities. It also allows the Agency to look at exposures at each eating occasion rather than grouping the entire day's food and drink intake at once. The Agency can thus conduct more refined risk assessments that will help inform regulatory decisions for pesticides.