Technical Abstract: Microwave digestion followed by analysis using ICP-MS has been shown to be a simple, fast reliable method for the multi-element determination in multivitamin/mineral dietary supplements (MVM). A study of 35 popular MVM dietary supplements revealed that composition and levels varied among products, and no standard compositional formulation of MVM existed. The described method shows higher recoveries of all elements of interest and in these analyses, four toxic elements, essential elements and non essential elements that can be toxic at higher concentrations were used. The results showed that all 35 products have calculated daily intake of toxic elements concentration lower than those of the regulatory limits. Overall, the percentage deviation from the label claim is element specific.