Jack412, I've done a lot of reading since I last posted that this morning. I can't comment on this particular diet for IBS because I don't have Irritable Bowel Syndrome (IBS), nor do I know anyone who has it, other than to say that diet is incompatible with LCHF diet.
That said, the Specific Carbohydrate Diet (SCD)
is compatible with the LCHF diet, and it also is used for IBS, crohn's, colitis, and celiac. The spirit of this topic is an attempt to understand why my colitis returned 5 weeks into the LCHF diet.
In a 25 period, I have only had three colitis flares: when my father was dying from cancer, when I went to work for a fish and chip restaurant and was eating french fries daily 5 days a week, and...now.
Based on the information I reviewed today, I believe the first occurrence was due to stress, the second due to eating potatoes 5 days a week for 6 months, and this time due to eating milled flaxseed every day for 4 weeks.
For those who have (or have a vulnerability to) Inflammatory Bowel Diseases, eating foods like potatoes and milled flaxseed daily over a period of weeks or months can result in significant gastrointestinal symptoms, likely due to bacterial overgrowth in the large or small intestines. That's why those two foods, potatoes and milled flaxseed, are both "illegal" on the SCD. I also listened to two lectures on Small Intestinal Bacterial Overgrowth (SIBO), which is new to me. High fiber foods are sometimes a problem for these folks too.
As stated in my edit of my original post, I no longer believe the fat I'm eating on the LCHF diet caused the re-occurance of my colitis symptoms. I now think it was the milled flaxseed, a food that is very healthy for most people, just not for people like susikavi and I.
Apologies if in my search for answers I gave the impression that I am in any way discouraging people from doing the LCHF diet. Now that I think I've figured out what happened, I'm excited about continuing on the LCHF diet, and I am adding the SCD to get my colitis, which is very scary, back under control.