Not sure what the autoimmune/antiinflamatory diet is but I am following a gluten free, lactose free, low fructose and low carb/ low grain diet and it has worked wonders for me. I also take supplements like omega 3, L glutamine, quercetin, vitamin A, Vitamin D and Zinc. The idea is not to stay on this diet forever but to very slowly introduce new foods into the diet. I am on a Low FODMAP diet with low carbs. I saw improvement in ten days.

@sue6408 I have not tried that diet. I believe it is very much the same as the Paleo diet. I have a friend who is on Paleo and loves the diet. She's lost over 30 pounds in a year and feels better than ever. The one your dietitian suggested may even be a little stricter than Paleo but suggests omitting many of the same foods.