[header] How to diagnose selective eating disorder [title] Look for prolonged expressions of " picky eating. [step] " on the surface, sed will look like regular " picky eating, " meaning that the individual will only eat select foods and refuse all others. If this behavior persists for more than four months, or appears to get worse, you may be dealing with more than just pickiness. 
[title] Notice if certain food groups are restricted altogether. [step] Individuals with sed will often refuse entire food groups, such as vegetables, meat, or dairy.