Not too sure about SIFO, but I struggled with SIBO for years. I tried xifaxan a few times which would help a bit, but not much. When I came down to eating only three foods (for years) I became worried and began trying to follow a SIBO diet and working with a nutritionist. It was a scary and rough time. At the time I was living on chicken, yams and boost...the foods had to be pureed too. My energy was always low due to not having enought nutrition. I was pale and very thin, but my belly would bloat. I found that sugar was the main culprit for me. I had to keep sugar at bay and anything that would quickly turn into sugar. I ate mainly the pureed chicken and well cooked pureed veggies, but tried small bits of other foods little by little (one every 3-4 days) while keeping a food journal (due to many reactions to foods because of SIBO). This helped as well as taking a probiotic. The key for me was to start anything new in tiny amounts. So, for the probiotic I had to open a capsule and let the tip of my pinky take a little of the powder for about 2 weeeks and on and on until I could take a whole capsule. It changed my life, but I also had to implement digestive enzymes to break up the food and ICV massages to help with transit time, etc. I researched on gut care as well and started some things for that (IGg, bone broth, l glutamine, etc.). I still have to keep regular or I do not feel well. I also steer clear from sugar and anything that could cause me constipation. I found that stress made the condition worse so I try to relax after meals. Anyway, I finally got to a point where I could eat many foods and not pureed. Thanks to God! I hope this helps.