For me:Remission = do not need to do anything, take any supplements, eat special diet.Managable = quality of life restored but must keep taking the supplements, take medication, or eat the diet or whatever it is that reduces the symptoms to the point they are a minor inconvenience (even regularly) or happen only on occasion.Now what is an "inconvenience" or disruption to your quality of life may vary. Some people are very anxious so may have huge disruptions from the anxiety over mild/minor symptoms. So basically to me managed means that for most days (may have an occasional bad day but then healthy people have occasional constipation and diarrhea) you can go to work, go to play and eat well. If someone is fructose or lactose intolerant or reacts to greasy foods they may have to control the diet, but then most people for health reasons should eat differently than a lot of us do and bacon double cheeseburgers really aren't good for anyone, even if a lot of people eat them regularly.I've been through several stages.Somewhat managed. Medications made it so I could at least go to work and do most things but I wasn't symptom free, just symptoms reduced to where I could function.Completely Managed. After CBT I took much less medication than the above stage and had zero symptoms as long as I stayed on the medication. So no pain, no disruptions, like I didn't have IBS, but if I stopped the meds the pain would creep back but only about 1/10th of what I had when the IBS was at it's worst.Remission. What I am in now. No meds, no supplements (other than I take probiotics to fart less, but I farted a lot before IBS) and I have symptoms at the rate you expect in healthy controls.Even when people do not have IBS they can have GI infections, or eat poorly, or drink too much, or get too little sleep, and have a rough hour or day of things being a bit off. However if that is 2-5 days out of a year, that isn't IBS. Usually the cut off is about 7 days with symptoms per month, and it continues for months on end.