How much protein for each allergen is included with Stage 3? Stage 3 will contain a total of 2 g of protein per week for each allergen with the exception of egg whites. The egg white protein will be 1 g total per week. Related articles Why doesn't Stage 3 introduce one allergen at a time like Stage 1 and 2? What allergens are included in Stage 3? If my baby didn't have Stage 1 and 2, can they start with Stage 3 if they are old enough? Why is shrimp powder not included? How will I know which food caused an allergic reaction at Stage 3?