Hi Dr Narasi, in November last year I had a 3cm caseros tuner in my colon and subsequently had most of my colon removed. A few months later I had a blood test that showed my glucose sugar to be 9. Prior to the operation I was 3.5. After watching the tv program Ask the Doctor on gut bacteria where it showed that by consuming resistant starches your colon produces butyrate which is important to your health. what happens if you don t have a colon? How does my body make butyrate ? I have a reasonable amount of fibre.