Actually I have battled this same issue (inflammation in the digestive system) twice not over several years with two different methods but will limit this remedy to my experiences with coconut oil.
I am a typical late 50's guy that eats too much bad stuff, about 40 pounds overweight (doesn't drink or smoke) and as time goes, it catches up with you! Since I was a child I have battled Asthma and horrific allergies with their effects on the body and mind. A couple of years back, I discovered caffeine was a huge issue within the lower intestine and it let me know about it 48 hours after consumption! I have drank countless sodas over the years and cut them back to 1 every 10 days. When I did this, no side effects, however... the real damage had been done.
While I chose not to go see a professional regarding this, I had my suspicions as to what was the issue. Even after cutting back on Caffeine (plus doing away with store bought milk which caused the same effects), I just wasn't feeling right. While this may sound odd, I could feel a build up of internal heat within my lower intestinal tract which I believed was inflammation and the problem became so severe with the heat level, it felt like I was sitting on a heating pad all day long!
Naturally my thoughts turned to Cancer of the colon/lower intestinal tract, but I don't believe in the quack medical field today concerning "Cancer Specialists" and chose to self diagnose. Jumped on the internet, looked up the symptoms and didn't find anything regarding actually feeling a internal temperature change. I was becoming more concerned.
The previous time (approx. 2 years earlier), I knocked it out with a combination of a couple of small apples every day (only red apples, skin and all) with fish oil capsules and it disappeared after 6 weeks. This time, I tried several variations to see what the results would be.
I attempted to resolve the internal issue with only Fish Oil and Garlic Oil capsules and this was not enough by itself. I also tried the same thing with apples alone with the same results. After reading several posts by Bill in the Philippines regarding Coconut Oil and Candida Overgrowth ( which I felt I had also from a less than desirable diet), I started cooking my breakfast every morning with coconut oil. Eggs, sausage, fried potatoes and a English muffin with the same oil spread onto it instead of butter. Problems have disappeared over a 6-8 week period.
While I still haven't been consistent with this method as far as continuing past the 8th week, I still feel a "small reminder" now and then telling me to stop screwing around and stick to this method. Many thanks to individuals like Bill and Ted whom have done the research and decided to post their results on this website.