The need for fiber may be like one of those sayings that are wrong like "breakfast is the most important meal of the day". Those things we have been told for most of our life but turn out to be wrong. Better the doctors tell you than me. Watch some of these. Dr Paul Mason shows a wonderful study that shows the more fibre, the more constipation.

https://www.youtube.com/results?search_query=dr+paul+mason+fiber

https://www.youtube.com/results?search_query=dr+ken+berry+fiber

I personally don't worry about fiber. I get what I get.

John