This is a prospective observational study with repeated measure design. All participants aged 6 months to 6 years diagnosed with two or more food allergies will be invited to participate in the research study. At least one of the two food allergies must be milk, egg, wheat, or soy, which are nutritionally important food allergies. Inclusion criteria include diagnosis of two or more food allergies confirmed with skin prick testing or serum specific IgE (SIgE)testing. Participants aged 12 months or older will be invited to participate in the Mealtime Behavior Questionnaire (MBQ) and Feeding Strategies Questionnaire (FSQ). Participants with developmental delay, genetic syndromes or other chronic medical conditions will be excluded from the study. Participants with two or more food allergies that do not have at least one nutritionally important food allergy (milk, egg, wheat, soy) will not be invited to participate in the study. We will also exclude participants with a history of digestive surgery, non English-speaking patients, and patients currently receiving nutrition support (enteral or parenteral nutrition). Patients will be excluded if they received greater than one week of oral steroids in the previous three months. Exclusively breastfed infants will be excluded from the study as their nutrient intake cannot accurately assessed (must consume at least some foods or formulas). We will include patients if they have asthma, eczema, or both. There will be no control group recruited for the study as comparisons will be made within the study population.