BackgroundLittle is known about the interaction between parents and children in dietary supplement (DS) use.ObjectiveDetermine if parental use of dietary supplements predicted child use.Methods4556 parent‐child pairs who responded to questions about DS use over the past 30 days and participated in the CAM supplement of the 2007 National Health Interview Survey. DS were categorized as multivitamin mineral (MVM) (2 or more vitamins +/or minerals) only; single vitamin or mineral DS (SVM) with or without use of MVM; non‐vitamin non‐mineral DS with or without use of MVM or SVM (NVNM) and DS nonusers. Prevalence of use and standard errors were calculated using SUDAAN PROC DESCRIPT to account for the complex sampling design and standardized to the 2000 census.ResultsIn the pairs, 46.4% of the parents and 36.6% of the children took DS, and use of MVM and SVM was much more common than NVNM. For parents who used any DS, fully 55% of their children used them as well. Among parents who used MVM, 50% of the children used MVM, for parents who used SVM, only 10% of the children used SVM and for parents who used NVNM, only 13% of the children used them.ConclusionParents who use DS are more likely to give them to their children than those who do not. In most cases the children took micronutrient DS (MVM and SVM). Parents who used NVNM were more likely to have children who used NVNM.Support: Office of Dietary Supplements, NIH, and Jean Mayer USDA HNRC on Aging at Tufts University