Feeding foods like peanut, egg, and milk only once or twice is NOT enough. We recommend using Ready, Set, Food!, for at least 3 to 6 months, or until your baby is regularly eating peanut, egg, and milk at least 3 times a week. We designed Ready, Set, Food!, to make it safe and easy for parents to not only introduce the 3 allergens, but to sustain exposure as well.