There isn't a lot of research on this topic yet, but I just spent a few hours and found that there is definitely a link between celiac disease and mental disorders (like anxiety, depression, etc) due to a decreased blood flow to the brain. It would stand to reason that IBS would be similar, since lots of people with IBS also have food intolerances. My hunch is that IBS could both be caused by EDs and cause EDs. From personal experience, I've found that needing to follow a strict diet (no gluten, dairy or fructose for me) to help my IBS has led me to become too controlling with my food, although I don't believe I could be classified as having a full-blown ED. I obsess over my appearance, which for me focuses specifically on exercise and food. It makes a lot of sense to me that eating foods that block my body's ability to obtain nutrients from them would cause other non-stomach issues. So, you see, it's circular--IBS depletes my body of nutrients, which causes depression/anxiety and leads me toward EDs, which cause my IBS to flare up and deplete my body of nutrients ... Quite a vicious cycle. I'm planning on going to an integrative doctor shortly who can test me and see if I have any deficiencies due to my limited diet. My hope is that following my diet will eliminate the stomach & related problems, and supplementing whatever vitamins & minerals I'm lacking will eliminate the depression that leads me back into the vicious cycle. Fingers crossed!If you're interested, you might want to check out some of the articles (or abstracts) I just found (it's interesting but fairly scholarly):
- Depression, Anxiety, Panic (The Gluten File) - This is a summary of quite a bit of research, all in one place. I'd recommend starting here.
- Food Cravings, Obesity and Gluten Consumption (Dr. Ron Hoggan, Ed.D)
- Features of Eating Disorders in Patients with IBS (Tang TN, Toner BB, Stuckless N, Dion KL, Daplan AS, Ali A.)
- Depression and Gluten: Is Dietary Change Too Easy? (Dr. Vikki Petersen)
- Psychiatric Issues in Celiac Disease (Ron Hoggan)