In a small number of studies Modafinil 200 mg Australia has been show to reduce food intake by laboratory animals and humans. In the present study we investigated this effect in a 23-day simulated shift-work study with a wide variety of foods and beverages freely available.On experimental days they were awakened at 0815 or 0015, depending on the work-shift condition, and were provided with a food box containing a range of food items including a frozen meal. In addition, they could purchase additional quantities of any food item on request.