Many young children display some sort of picky eating. Although most children's diets will eventually consist of an adequate number of foods, some children's diets may not change without intervention. Children with limited diets typically have difficulty consuming new foods because they have some stomach discomfort, have limited oral-motor skills, or have limited positive experiences with food other than their preferred foods. Before introducing new foods to children with limited diets, it is important to rule out any stomach discomfort and make sure they have adequate oral-motor skills for the texture of food you are attempting to present. Some children may need to be exposed to a wider variety of foods at a puree consistency before exposing them to higher textured foods. It has been found that asking a child to first complete a lower level of exposure with a new food, such as touching the food to their cheek, before asking the child to swallow the food is often beneficial. Motivation in the form of immediate access to a preferred toy or activity for 15 to 20 seconds has also been found to be beneficial in increasing a child's exposure to new foods. Once a child has swallowed a new food multiple times (10 times according to some researchers) that food can more easily be incorporated into the child's diet.