I have gained remarkable control of my IBS-D that I could not get from the EFI diet alone. I simply removed foods with excess fructose, of course lactose (dairy products), polyols and some fructans/galactans.
However, the FODMAP diet alone without restriction of high insoluble fiber foods does not work. But according to the GI researchers this can be expected in some individuals as witnessed by my previous posting.
The difference for me by adding the FODMAP diet is the difference between night and day for me I might also mention that a RD in a local hospital that I have been communicating with has had remarkable results with some functional bowel disorder clients particularly those with IBS.
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS