Also, is the FODMAP diet a good treatment for SIBO along with the other interventions the doctor recommends? I did the full elimination phase and have been able to reintroduce lactose and some other foods on the list (I’m a vegetarian) but around the time when I went on the FODMAP diet I also became constipated, despite eating tons of fiber.

What dietary sources of fiber can help someone who has constipation but is already eating loads of fiber? I’m wondering if it is a lack of variety in my diet that is the problem.

It might not be long enough for some, Jason. But, staying on the low FODMAP diet long-term can raise pH of stool–this is not desirable. If you do not get full symptom benefit w/ the diet in 2-6 weeks, discuss with your healthcare provider other treatment plans or causes of your distress. There may be other treatable conditions that are causing your symptoms beyond a FODMAP intolerance. Don’t get me wrong–there are parts of the diet that may be continued long term–but the FULL elimination diet beyond 6 weeks is not the goal for the vast majority of patients.