A kit of individual packets of food containing a dosage amount of an allergen. The kit has a plurality of packets associated with each other and containing a carrier food in each packet and an allergen so arranged that the respective allergen quantity in each successive packet is larger than in the previous packet. Preferably, the allergen quantities are different and range in weight from 100 mg to 1800 mg in 7 packets. Preferably, each kit has about the same total weight which is in the range of about 3 mg to 4 mg. The contents of each package can be fed to an infant by being dissolved in mother's milk, formula and the like. After the initial introduction packets, maintenance packets, preferably containing 2 mg of the allergen can be fed to the child.
