As with nearly everything in medicine and science food allergies/intolerances are a potentiality, not a certainty. Genetic and environmental variables are all players here. For example inadequate sleep raises systemic inflammation and disturbs digestion. This can leave larger, intact food particles available for uptake through the intestinal lumen. That may be the start of an allergy or autoimmunity:
In an ideal world I think a week of chicken followed by a week of fish followed by a week of beef etc. would be ideal from the standpoint of both mitigating potential allergies, but also to provide well rounded nutrition. Obviously modern living can make this challenging but an understanding of this concept can help guide smart food choices.
Let me know if this helps