Sweetener tagatose may tame blood sugar and feed good gut bugs
NCT ID NCT06920641
First seen Apr 21, 2026 · Last updated Jun 21, 2026 · Updated 10 times
Summary
This study tested whether tagatose, a low-calorie sweetener, can act as a prebiotic—meaning it selectively feeds beneficial gut bacteria and improves blood sugar control. Fifty-nine healthy adults with slightly high blood sugar or insulin resistance took either tagatose or a placebo (sucrose) daily for four weeks, then switched after a break. Researchers measured blood sugar responses and gut bacteria changes to see if tagatose offers a health benefit beyond just sweetening.
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the original study
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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Contacts and locations
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Locations
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INQUIS Clinical Research
Toronto, Ontario, M5C 2N8, Canada
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
tagatose
What this could lead to
If tagatose is shown to be a prebiotic, it could point toward a sugar substitute that also supports healthy blood sugar and gut bacteria.
What could go wrong
This is a small, early-stage study in healthy adults, not people with diabetes. The results may not apply to the general population, and tagatose may not prove effective.
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.