Yep, anytime someone tells me that there is a food they cannot live without it sends up red flags for me- after spending way too much energy figuring out the intolerances of myself and my kiddos. Especially for gluten and dairy they are so addictive. The people usually in the strongest denial are the worse.
I have a friend who has been sick as a dog for 2.5 yrs, to the point that most of the time she cannot even function well enough to do basic activities. Walking down stairs is even too much. For nearly that entire time I have tried to convince her she is showing blaring signs of at least a gluten intolerance if not CD yet she kept on- now she finally had testing and she is highly reactive. The bad thing is because she ignored the primary intolerances she has done so much damage there are tons of other usually benign food that she is reacting to as well.
Mama to 4, wife to my love