There is some research that says for some people low carbohydrate diets can help with IBS-D. I'm not sure it matters which particular one, but if you find one you can stick with that works to control the symptoms, and you can make sure you get a balanced diet (or can supplement what you are missing) then it can be a fairly safe way to get control.If you find you limit/exclude a lot of foods and symptoms don't change then just make sure you eat healthy and try something else to control symptoms.Glad this combination is working for you. Probiotics sometimes do make a difference for some people as well. A lot of people do find they need a combo of a couple of things for good control.