If skin testing is not available to confirm food allergy or results are inconclusive, the next options may include one or both of the following: Eliminating foods the patient suspects of causing symptoms based on the patient's food diary, then evaluating symptom resolution Prescribing a diet that consists of relatively nonallergenic foods and that eliminates common food allergens (see table Allowable Foods in Representative Elimination Diets) For the latter diet, no foods or fluids may be consumed other than those specified.