I can attest to this. I gave up gluten last year. I don't know if I was really allergic. I never had the blood test done. The result is that I pay greater attention to everything I eat and stick mainly to whole grains, vegetables, seafood and dairy.

But I eat a lot more dairy. Something about the diet makes me crave ice cream and creme brulee type things. I must be consuming more fat than I ever did before.

The net result is I lost about ten pounds, which is about 8% of my body weight.

If I wasn't allergic to begin with, I also gave myself a gluten intolerance, so it's not something to enter into lightly. But I feel like a new man.