The Nestlé Feeding Infants and Toddlers Study (FITS) is the largest and most comprehensive dietary intake study focused on infants, toddlers and preschoolers in the U.S. Started in 2002 by Gerber and now conducted by the Nestlé Research Center in Lausanne, Switzerland, FITS has surveyed nearly 10,000 parents and caregivers over three studies to gain a better understanding of the food and nutrient intakes and related lifestyle behaviors among young children.