Table 3.

Diet assessment^* (adapted from (3))

SI	Author Year Study Name	Exposure	Dietary assessment method	Food composition database definition of relevant nutrient	Internal calibration (or validity) of dietary assessment? (y/n). If yes, provide data	Biomarker Assay	Analytical validity of biomarker data reported? (y/n). If yes, provide data	Time between biomarker sampling and analysis	Season/Date when biomarker samples were drawn	Background exposure data
Clearly define foods, food groups, nutrients or other food components. When using dietary patterns or indices, describe the methods to obtain them. Specify if nutrient intakes are reported with or without inclusion of dietary supplement intake, if applicable			Refer to the name indicated in methods and specify the reference time (number of days recorded) and portion size estimation, if applicable. Report if and how supplement intake was assessed.	Indicate the full source of food composition database used to calculate dietary intakes (diet and supplements). Describe the use of conversion factors (weight yield and retention), if applicable.	Reference the validation study of the dietary or nutritional assessment method, including the reference method(s) used. The measures of validity should be reported (e.g. mean difference, correlation coefficient, classification agreement and limits of agreement).					Give the distribution of participant characteristics across the exposure variables. Provide an estimate for variation. Specify if food consumption of total population or consumers only were used to obtain results. Describe intake modeling (e.g. calculations of usual intake distributions) and use of weighting factors, if applicable.

^*Write ‘nd’ if there was no data reported. Please do not leave blank.