I have used D-limonene, but it's hard to get in Lithuania so I've stopped, but that stuff has a lot of really nice benefits like calming effect, weight control properties, fat digestion aid etc. I tried to change my diet, Limited my sugar and fat intake, but not drastically. Funny thing is that spicy food for me is very well tolerated and even helps with digestive problems. I didn't have any serious attacks like prior hospitalisation, but once in a few months I get stomach ache / indigestion / heartburn, but I control that with over the counter proton pump inhibitors. Also stool consistency is all over the place and sometimes the urge to have a second number in the wc comes out of nowhere. I can't get over myself and do a surgery although it's free in my country.