Here's a question for William and other Stefansson fans. The question arises as an aquaintance of mine is shifting to palaeo eating but is worried about becoming constipated. My guess is that she'll have fewer bowel movements when she changes but I advised her not to regard this phenomenon as being in any way related to constipation. I have told her that meat and fat are largely absorbed in the digestive process and leaves the body in urine or in breath. I have also passed on my own experience which is that when I switched from being a vegetarian to palaeo eating in 2000, my bowel movements reduced from one every day (occasionally two) to one every 1-3 but that the reduced frequency was no accompanied by any discomfort. I would notice discomfort more than most because I lead an active life including three pretty intense gym sessions most weeks. Do you know what Stefansson experienced by way of frequency and ease of bowel movements? What the Inuit experience is in winter and spring when there's virtually no roughage to be had? Keith