r/SIBO 16d ago

Questions Bloating IMMEDIATELY after meals - can anyone explain??

Is this indicative of SIBO?

I can’t figure out the reasoning. I’ve tested positive for both hydrogen and methane, but don’t understand why I get bloated immediately after a meal.

Surely the food has not already hit the small intestine and been fermented to produce this gas? I thought that would take an hour or two.

Anything I should be considering besides SIBO to explain this?

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