I saw a worrying report of an article in Nature, no less, questioning whether the sugar substitute trehalose could be a cause of the recent rise in Clostridium difficile infections.

As a precaution, I'd like to know how to avoid trehalose. Our family here in the UK eats mostly organic food. Is it possible for trehalose to be present in an organic certified product? I note that some suppliers purport to sell "organic trehalose".

If a food contains trehalose, how does it appear in the ingredient list? (Especially in the UK.) Will it be called "trehalose", or some E-number, or something else?


  • Beware of supermarket sushi (as in, not prepared fresh to order) - trehalose is commonly used to keep the rice from staling. – rackandboneman Jan 15 '18 at 19:02
  • Looking online at the ingredients in UK supermarket sushi, I see "sugar" added to the rice, but no mention of trehalose. I wonder if they can just call it sugar? It is a sugar, after all. Thanks! Plus, I see that trehalose does not have an E-number, unless it's called something different there. – emrys57 Jan 15 '18 at 20:05
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    Sugar, Modified Anystarch, Spices and Flavourings - while they are not necessarily bad for you, they are bad for ingredient disclosure. – rackandboneman Jan 15 '18 at 21:21
  • I wrote to the UK Food Safety Agency with this question. Their computer says I should see an answer in a few days. Or 20 days if it's a hard question. – emrys57 Jan 16 '18 at 13:53
  • Some sushi recipes (and fresh sushi) use ordinary sugar. – rackandboneman Jan 16 '18 at 15:28

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