Over a period of 2 yr 126 different food items of a market basket of 16-18-yr old males were purchased every 2 months. The foodstuffs were prepared as for eating, and were combined in 12 commodity groups. Twelves samples of each food group were homogenized and analysed for 78 different chemicals, including pesticides, PCBs, bromine, heavy metals, arsenic and selenium. Thirty-four of these chemicals were detected in the various samples and the means and ranges of residue concentrations found in each food group are reported. Most chemicals were found in concentrations below the Dutch residue tolerance limits, the two exceptions were omethoate and carbendazim. Using the concentrations found in the total diet samples the daily intakes of the various chemicals were calculated. The daily intake figures were evaluated with the aid of the Acceptable Daily Intakes (ADI) recommended by FAO/WHO. For practically all chemicals examined the mean and the maximum intakes were well below the ADI.