Anyone who is HLA B27 positive get results from a low starch diet?

I have read both ways that it could help people without HLA-B27 and also that it doesn't help to eat a low starch diet. Anyone tried this? I did a keto diet and I felt better if I stayed gluten free and dairy free. I am struggling with my resolve on any diet. I get burned out from trying to not eat the stuff that I get for other people in the house. I have a house of somewhat picky eaters and I watched some of my friends have to eat strict diets when the were kids and they would just gorge the forbidden foods when they weren't with their parents.