Yes, they are. But after no results from my regular doctors and then being told by the gastrointestinal doctor to never take the PPI again, my options were not limited but didn’t exist in my health care system.
On my own after some reading and research, I omitted all gluten products, became dairy free and sugar free. After 3 weeks, I felt better and that is what convinced me to try functional medicine. There is a book by Dr. William Davis titled “SUPER GUT”. It has very helpful information if you are motivated to self help. I found it useful in a few ways. You can purchase on Amazon.
I wish you the best. I know it’s not easy. It’s a long journey! Take care.