Nay, nay and thrice nay. Certainly not unless you have a proven intolerance. Again, we've evolved to eat grains, including wheat, as part of our diet. A better question would certainly be: why are we (apparently) seeing increasing allergies against things such as gluten in the 'West'? Why are we seeing (apparently) increasing allergies against peanuts when, in countries such as Thailand that use peanut in so much of their cuisine, there doesn't appear to be the same issue?