Overview
About Allulose
Allulose is a rare sugar (D-psicose, the C-3 epimer of fructose) that occurs naturally in trace amounts in figs, raisins, jackfruit and maple syrup, and it is one of the few sweeteners with a genuinely clean trigger profile: no histamine, no salicylates, no lactose or gluten, no nickel or sulfites, and it is not a FODMAP. It is also not a sugar alcohol, which is the point most people get wrong. Where erythritol and sorbitol are polyols that arrive in the colon largely undigested, allulose is absorbed in the small intestine and then excreted in urine almost unchanged, so far less of it reaches your gut bacteria. It still has a dose ceiling, and outside the US it is harder to find than you would expect.
Sensitivities
How Allulose scores
Watch for
What trips people up
- It has a real dose threshold. Tolerance testing put the maximum single dose at about 0.4 g per kg of body weight and the maximum daily intake at about 0.9 g per kg, with severe diarrhoea appearing at 0.5 g per kg in one sitting. For a 70 kg adult that is roughly 28 g at once, which a generous slice of allulose-sweetened dessert can reach.
- Overshooting looks like bloating, abdominal pain, nausea and loose stools. This is the unabsorbed fraction working osmotically, which is also why it is graded poorly on the low-fermentation SIBO column despite being fine on FODMAPs.
- You cannot buy it in the EU or UK. Allulose is an unauthorised novel food there, and in June 2025 EFSA closed its assessment saying safety could not be established because the applicant did not supply the requested data on identity, production, genotoxicity and human studies. That is a paperwork outcome, not a finding of harm, and new dossiers are in progress.
- US labels handle it oddly. Since 2019 the FDA has allowed allulose to be left out of the total sugars and added sugars lines while still counting in total carbohydrate, so a product can read 0 g sugar and still contain a substantial amount of it.
Diet fit
Where it fits
Swap ideas
More alternatives
FAQ
Common questions about Allulose
Is allulose a FODMAP?
No. Allulose is not a fermentable oligosaccharide, disaccharide, monosaccharide or polyol, and it grades clean across the FODMAP columns including excess fructose and polyols. Despite being a fructose epimer it is not absorbed or handled like fructose, and it does not carry the excess-fructose problem that honey and agave do. The caveat is that low FODMAP does not mean unlimited: the portion of allulose that escapes absorption still acts osmotically at large doses.
Is allulose a sugar alcohol like erythritol?
It is not. Allulose is a monosaccharide, a rare sugar with a normal sugar backbone, while erythritol, sorbitol, xylitol and maltitol are polyols with a different chemistry and a different fate in the body. That distinction matters if polyols are one of your triggers, because allulose grades A on the polyol column while erythritol grades E. It also explains why allulose is generally the gentler of the two on the gut at comparable amounts.
How much allulose is too much in one sitting?
Human tolerance work suggests staying under roughly 0.4 g per kg of body weight in a single dose and under about 0.9 g per kg across a day. In practice that is around 25 to 30 g at once for an average adult, with symptoms such as diarrhoea, cramping and nausea appearing above that. Sensitive guts should start lower and build up, since the threshold is individual and the first large exposure is usually the one that causes trouble.
Why is allulose banned in Europe?
Banned overstates it. Allulose has simply never been authorised under the EU novel food rules, which require positive approval before an ingredient can be sold. EFSA concluded in June 2025 that it could not establish safety, but the stated reason was that the applicant stopped responding to requests for data on identity, manufacturing, genotoxicity and human trials, not that a hazard was identified. Fresh applications are moving through the EU and UK systems, so the status may change.
References
Read the background
Ratings reflect the Triggerbites ingredient database and may vary with portion size and preparation.