I have found mine very beneficial. Initially they helped me while I was on TPN and enteral nutrition; they have helped me find the right sorts of meal-replacement drinks for when I am unwell; they regularly go through my diet and make sure I'm getting enough nutrients.
Now they are referring me for extra tests because they think I have food-related problems on top of my Crohn's. Nobody else would have noticed that: the doctors don't think too much about
our diet.
Besides, my doctor prefers me to see one regularly, so I don't really have too much choice in the matter
.