Sniffing madeleines before a sugar drink: can a pleasant scent change your blood sugar response?
NCT ID NCT07638111
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study will test whether smelling a pleasant food odor (madeleine scent) before drinking a sugary solution changes how the body handles blood sugar. Twenty adults, some with obesity and mild insulin resistance and some without, will each undergo two sessions: one with the scent and one without. The goal is to see if the smell triggers an early insulin release and alters blood sugar levels, and whether this effect differs between the two groups.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
pleasant food odor (madeleine scent)
What this could lead to
If it works, this could reveal how food smells influence blood sugar control, potentially leading to new strategies for managing insulin resistance.
What could go wrong
This is a very small, early-stage study with only 20 participants. The effect of smell on blood sugar may be too subtle to detect or may not apply to real-world eating.
Disclaimer
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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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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.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Centre de Recherche en Nutrition Humaine Rhône-Alpes, Centre Hospitalier Lyon Sud
Pierre-Bénite, 69495, France
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact Phone: •••-•••-•••• Email: •••••@•••••