Hi,
Juicers vary a lot in design. They do remove most of the insoluble fiber (in the extracted pulp) but not the soluble fiber. Some Crohns people can have trouble with the effects of even soluble fiber, so it is trial and error. Worth trying out though - hope it works for you.
Ensure does not contain lactose, but does have milk protein (caseinate.) While lactose (milk sugar) is the main culprit for irritating Crohns people, a few also react to milk protein (bummer.) Generally it is a very useful addition to the diet for people with limited ability to eat.
good luck.
Post Edited (ambling) : 4/6/2012 6:29:16 AM (GMT-6)