There is a somewhat recent post on fiber by Mark Sisson, who is known for his “primal blueprint.” It is quite informative. I’m glad that at some point he notes the difference between soluble fiber and insoluble fiber. Insoluble fiber is also referred to as “roughage” and doesn’t dissolve in water and isn’t digestible. If someone such as myself has issues in the colon then avoiding insoluble fiber is advised.
Insoluble fiber is found in many vegetables, fruits, nuts and grains.
Back in 2004 or so I was reading about fiber and how it could be helpful for someone with inflammatory bowel a.k.a. ulcerative colitis. But at that time I hadn’t learned enough about it. I was having pea soup for a while, but when I had another relapse of colitis in late 2004 I looked into these things further.
But it is okay for a sensitive colon to ingest soluble fiber, which does dissolve in water and is digestible. But not too much of it.
And even some forms of soluble fiber are still “harsh” and a bit difficult to digest, as I have found out. One example, in my experience, was pectin. The acidophilus pearls that I was having from 2005-2013 seemed to add pectin to their ingredients and I wasn’t aware of it until I then had a relapse in late 2012 the first one since 2005. In 2013 I switched to a different brand of acidophilus supplement.
Another harsh form of soluble fiber is fructooligosaccharide (FOS), which Ensure Plus had added and which seemed to give me a bit of trouble (when I was drinking Ensure, that is). Ensure removed the FOS at some point. I’ll bet people complained about it. One thing Ensure is good for is for people who have big issues in their digestive system and can’t eat a lot of food at that time, especially someone with ulcerative colitis.
But I had read that soluble fiber is good for the colon and actually aids the acidophilus probiotics to do what they’re supposed to do. So for several years I have been having a half-teaspoon of guar gum powder 3 times a day, mixed in with my apple juice or grape juice.