I want to share with you a case that I saw not too long ago at my clinic (the IBS Treatment Center). A gentleman came to see me about a year ago for digestive issues. It turned out that he was allergic to dairy and to cane sugar. Avoiding these foods resolved his digestive problems, and he has been doing fine.
Interestingly, this individual had very noticeable vitiligo. Vitiligo is the name of a skin condition where one looses the pigmentation of the skin. That area then looses color in contrast with the skin around it. The cells that create the pigmentation of the skin are destroyed by what is assumed to be an autoimmune reaction. (Autoimmune reactions are when our immune system attacks our own body.)
Seeing him again, less than a year later, he noted that his vitiligo had greatly improved, which was apparent upon seeing him. He also noted that his brother, who had the same condition, had also improved when he too had changed his diet and avoided dairy and sugar cane. (As a note, food allergies are usually genetic issues.)
I thought that this was a very interesting case because I had often wondered if there was a relationship between vitiligo and food allergies. There is very little record of this in the medical literature and I do not believe that it has ever been well studied. Hopefully someday it will be. It is certainly worth pursuing!