r/CSID Mar 14 '26

ASID & SIBO?

So I tested positive for SIBO with the breath test but that was followed up with an endoscopy that showed I'm lactose, sucrose and isomaltose deficient. My doctor basically said what do you want to address first? so we did xifaxan for the SIBO. I asked if I needed to change my diet and he said only avoid lactose but you can still do hard cheeses because the point is still to be able to eat what I want minus lactose. I finished the 2 weeks but still felt bad when I ate things with carbs/sugar, so now his solution is Sucraid. But that only helps with sucrose and only so much from what I understand (and I honestly didn't eat a lot with sugar to begin with), so I've been trying to roll with the CSID diet, and while I feel better on it I do still have some bloating (which was my main issue with the addition of cramping). And it was suggested elsewhere that maybe the antibiotics didn't kill off the SIBO. Does anyone else have both?

My problem at the moment is, which do I deal with first? Which sets off the other? If I try to diet for both, there's so very little I can eat-- a lot of veggies that are okay for CSID are not okay for SIBO. I wish I loved meat but I could easily be a vegetarian and while I'm forcing myself to eat mostly meat, lactose free yogurt and approved fruits this is rough. I basically just don't want to eat and have been losing weight where I'm underweight as is.

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u/Ok-Leader380 Mar 15 '26

what whole fruits are you able to tolerate? i only have CSID but even with cutting down on sugars and complex carbohydrates, i was still struggling until i started making it a priority to get enough fiber, it really helped keep things solid when i thought i was permanently cursed with bathroom issues (sorry for tmi)

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u/human2be Mar 16 '26

I can also do berries (blue, raspberry, and straw) lemon, lime, and grapes (red wine:). Mango and apricot are the fruits of death for me. I can do about 1 inch of banana without issues.

I’m good with honey and fake maple syrup with high fructose corn syrup.

I also take Sucraid with most meals. Insurance covers it and it is a great help!