Sweet swap: study tests if replacing sugary foods with sweet alternatives lowers sugar intake
NCT ID NCT06925932
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether giving people different taste-based advice helps them reduce their free sugar intake to less than 5% of daily energy. Participants are adults in southern England who consume more than 10% of their energy from free sugars. They are randomly assigned to advice that either replaces sugary foods with sweet low-sugar options or with non-sweet flavorful foods, and their sugar intake, weight, and waist size are tracked.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- dietary advice (sweet or non-sweet replacements)
- What this could lead to
- If successful, this could offer practical, taste-based strategies to help people reduce free sugar intake and improve diet quality.
- What could go wrong
- This is a small, early-stage behavioral trial. Results may not apply to all populations, and adherence to dietary advice may vary.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 180 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2025
- Expected to finish
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Sep 2027
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Age 18 and over 2. Consuming more than 10% total daily energy from free sugars (-3% for testing error) 3. Residing in the South of England, and able to attend Bournemouth University for testing (Talbot Campus, BH12 5BB) 4. Able to provide consent and complete all study-related measures Exclusion Criteria: 1. Being a smoker or having smoked in the last 3 months 2. Being pregnant or breastfeeding 3. Being underweight (BMI \< 18.5 kg/m²) 4. Dieting or following a specific diet program (e.g., Weight Watchers, Keto diet, or Intermittent Fasting) 5. Following a specific diet or nutritional advice as a result of pre-existing medical condition (e.g., Crohn's disease, diabetes) 6. Having a pre-existing medical condition or taking medication that could affect taste and/or smell abilities (e.g., certain blood pressure and heart medications) 7. Allergies to foods and drinks used in the study
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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.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Bournemouth University
Bournemouth, BH12 5BB, United Kingdom
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