A food allergy is a greater immune response triggered by eggs, peanuts, milk, or some other specific food. Food is the most common allergic component. These kinds of allergies occur when the body's immune system mistakenly identifies a protein as harmful. Some proteins or fragments of proteins are resistant to digestion and those that are not broken down in the digestive process are tagged by the Immunoglobulin E (IgE). Food allergy is thought to develop more easily in patients with the atopic syndrome, a very common combination of diseases: allergic rhinitis and conjunctivitis, eczema and asthma. Open access to the scientific literature means the removal of barriers (including price barriers) from accessing scholarly work