The current allergy guidelines suggest  allergy foods to be introduced between 6 and 12 months. Ideally babies should be introduced to allergy foods before 12 months as leaving it too late can increase the risk in developing a food allergy. Repeat exposure is the key as your baby may not react to the allergen food from the first exposure. Introduce allergenic foods one and a time, offer every 3-4 days for 3-4 exposures before introducing additional allergens. NOTE: If you think your baby has an allergic reaction ensure you stop giving that food and seek expert advice.