This question may also shed light on whether or not the client understands what he or she should be eating and whether the client is willing to make changes in eating habits. For clients who are acutely ill: How has illness affected your choice or tolerance of food? Sometimes, food aversions or intolerances can shed light on what is going on with the client. For instance, someone who experiences abdominal pain that is relieved by eating may have a duodenal ulcer. Clients with little or no intake of food or liquids are at risk for dehydration and nutrient defi ciencies.