The SFS in US Benefiber is dextrin which is be made from starch extracted from wheat. According to the manufacturer it is gluten free. They say "The only active ingredient in Benefiber® is Wheat Dextrin, a natural soluble fiber that is considered gluten free (contains less than 10 ppm of gluten i.e., "gluten-free")". While the starch is extracted from wheat the dextrin derived from the starch it has none of the usual characteristics of wheat. It is quite unlikely to produce C.
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS
Everyone acts differently to the different SFS that are out there. In the UK I believe Benefiber contains (or at least use to) guar gum. In Canada it contains inulin which is a terrible SFS. It use to contain guar gum.
If a SFS works for you then it is fine
-------------------- STABLE: ♂, IBS-D 50+ years - Science of IBS
Cant see anything that says Guar gum on the wrapper but they dont always list everything do they. 1st tried fibersure which made me very bad (contains inulin) but Benefibre seems to have been ok for me so far anyway so i think i'll continue with it. Thanks for the advise Claire
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-------------------- Aged 31, 1 Husband 2 Cats and maybe (hopefully) a baby soon