Well, I have something "out of the box" that has curbed the food aspects of what is called IBS-C. I too just ate about 10-15 food items, all green-light only FODMAP foods (eat freely) as listed by the Monash app.

My IBS-C recently got worse even on the green-light only foods.

I thought about how I could drink Lactaid milk freely as it has the enzyme in it that digests lactose. I looked at the low FODMAP supplement section of the Monash App and found one company listed as low FODMAP that sold digestive enzymes to help with food intolerance. The company is Intolerans USA. I bought all their carbohydrate enzymes and got a massive improvement in my IBS symptoms.

I then added a protein digestive aid (Biotics Research's Hydro-zyme) and then Pure brand's Pancreatic Enzyme Formula for digesting fats.

I feel so good. I am still sticking to my limited, green light diet for now and hopeful for a wider choice of foods, as I introduce variety slowly.

And I am wondering if I have discovered the underlying food-based trigger for my IBS-C. Some type of dietary enzyme insufficiency.

I have an emotional trigger too, that luckily has been addressed already, Hypnosis Cognitive Behavioral Therapy. I do it 2X a day. A seven week program from GI Psychology in Burke, VA. Telehealth appts.

The moral of the story is keep searching. This support group is useful as you can learn what has worked for others.