Going gluten-free is not as hard as one would think. I think there are a lot of reasons for people to try to see if it helps their mental health. I've read things about it helping autistic children, so why couldn't a gluten-free diet possibly help a bipolar mind? It certainly won't hurt you to give up gluten. You have to be careful and read labels, of course. Our bodies don't NEED gluten to function. I think people giving up gluten because they think it will make them lose weight is silly (because it certainly didn't make a difference for me in that area), but from what I can tell, when I avoid gluten, my bipolar is like night and day. I'm honestly scared to try gluten ever again because of how bad my reaction was recently. Once I got the gluten out of my system, and then tried it again, I felt crazy. It was scary.

P.S. I don't do a lot of gluten-free breads and expensive GF products. I use a lot of corn-flour tortillas and brown rice for my starches. They aren't expensive. You just have to learn what types of food works for you if you go gluten-free. I'd be happy to tell people examples of what I eat for ideas.