Background: Asthma and allergy are both complex diseases caused by environmental and genetic factors. Food allergy (FA) and asthma have been shown to frequently co-exist with one another; however, the exact link and the extent to which they impact each other are still not fully understood. Objective: To assess association of bronchial asthma and food allergy, relationship between asthma exacerbation and food allergy. Patients and methods: A case control study included 100 asthmatic children ranging in age from 2 to 18 years. Clinical criteria, serum total and specific IgE (sIgE) for common food allergens were done. Results: Serum food-specific IgE test results came back with a positive and negative percentage of 44 percent and 56 percent, respectively. We found that FA was linked to moderate to severe persistent asthma in children, and that food allergy increased the proportion of uncontrolled asthma in children. Conclusion: Children who had food allergy had greater number of exacerbations and hospitalizations. Patients with asthma should be evaluated for food allergies, since they are a risk factor for asthma aggravation.