It is a breath test. Unfortunately, it only tells you if you can or cannot handle 25 grams of fructose. If you can't the test won't tell you how much you can handle. You have to determine this for yourself. Also, the breath test is prone to false negatives i.e. your test is negative but you are still a fructose malabsorber. The simplest test is to reduce your consumption of free fructose for 3-4 weeks and see how you feel.
Good Luck
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS
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Re: trying to get rid of really awful bloating and super stinky gas
