anyone had food allergy test to eliminate foods - leaky gut?

hiya, hope all are ok. i've been reading lots about how leaky gut could be a big contributer to ms symptoms. I'm considering getting a food allergy test to see what foods i'm intolerant to and so eliminate them and see if it helps me. i've heard of the York test, can anyone recommend this or shed any light on any aspect of what i'm talking about. many thanks for your help.