Another successful patient of the low FODMAP diet here. As soon as I stray from the restrictions I will suffer the next day. IBS can be crippling.

Honestly the scientist(s) who developed the low FODMAP diet needs to be awarded a Nobel prize.

It's the same for me. If I eat the wrong food, I'll feel fine for the rest of that day.

Then the next day, almost always in the morning is when the problems will start. Perhaps the bacteria had time to ferment the food overnight.

So when I have symptoms, I always look at what I ate the previous day.

Low FODMAP works, but it’s precisely because it’s unlike all other “diets”. It’s a systematic removal of basically all short-chain sugars. The problem with it, as someone who was instructed to follow it, is that it’s extremely unintuitive to know what foods are low or high FODMAP without the list. Because of this, it’s really easy to make mistakes unless you consult the list prior to eating.

So it definitely gives positive results, but it’s also very difficult to follow.

As someone on FODMAP, what works for me is to do breakfast/lunch meal replacement with low FODMAP shakes (like Huel), then get a few FODMAP cookbooks and make dinners out of that. Works great and is fairly painless - lots of delicious meals can be made that are low fodmap, fortunately. It's really difficult to avoid FODMAPs when eating out, western food loves onions and garlic for instance - for these cases, I use alpha-glucosidase enzyme tablets (I take 2x 350mg tablets with a meal).

Yep, there are hundreds of foods out there that have them.

Personally I use this app when eating anything I'm not sure about, it has a database of foods and their fodmap content: https://www.monashfodmap.com/ibs-central/i-have-ibs/get-the-...