The large colon absorbs around 5-10% of calories
Have you got a source, please? I've never heard of that before. I not only have no trouble maintaining my weight, I practically only have to look at something fattening to put on a pound or two. I think to actually lose
weight I would have to eat <1000 calories a day.
Now that said, there is nothing about
a colectomy which inherently makes it more likely that you will gain weight. In two and a half years of having an ileostomy my weight has remained stable. I just wish it would remain stable at a lower weight, although I did lose some weight immediately after my second operation.
Dx Crohn's in summer of 2000. (Yay )
Tried and failed: 5-ASAs, azathioprine, 6MP, Remicade, methotrexate, Humira, various diets.
Had surgery Feb '13 - subtotal colectomy with end ileostomy. First thing to put me into remission in 13 years.
Had second surgery 10th July '15 to reverse the stoma and connect the ileum to the rectum. Feeling rough.