Sweeteners under the microscope: do they spike blood sugar?
NCT ID NCT07506564
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looked at whether artificial sweeteners like Equal (aspartame) and Splenda (sucralose) raise blood sugar in adults with prediabetes. Fourteen participants ate controlled breakfasts with or without sweeteners, and their glucose levels were tracked for two hours. The goal was to see if these sweeteners affect glucose tolerance and insulin sensitivity.
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
-
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
-
14 people
The number who actually took part.
- Started
-
Aug 2022
- Finished
-
May 2025
- Lead sponsor
-
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
-
40 years and older
- Sex
-
Anyone
- Healthy volunteers
-
Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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: * Age 40+ years * Prediabetic * Weight stable for previous 6 months * BMI \<40 kg/m2 * Sedentary to recreationally active * No plans to gain/lose weight or change physical activity level * Consume less than one serving of non-sugar sweeteners per week Exclusion Criteria: * Diabetes or any diabetes medications * Antibiotic, prebiotic or prebiotic use in prior 3 months * Blood pressure (BP) \> 159/99 mmHg * Change in type or dose of these prescription medications over the past 6 months: antihypertensive medications, Statins, hormone replacement therapy (estrogen or testosterone) or oral contraceptives, thyroid medications * Diagnosed inflammatory bowel disease * Past or current heart diseases, stroke, respiratory disease, endocrine or metabolic disease, or hematological-oncological disease * Vegetarian or vegan * Pregnant or plans to become pregnant * Breastfeeding * Food allergies or aversions, Phenylketonuria (PKU)
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Prediabetes are added.
Genom att skicka in godkänner du våra Användarvillkor
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
Locations
-
Virginia Tech
Blacksburg, Virginia, 24061, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can four minutes of hard exercise match a longer workout for blood sugar?
- Can a Plant-Based diet program help patients lose weight and improve heart health?
- Can a health coach in your patient portal help you lose weight?
- Glucose sensor may flag diabetes risk in cystic fibrosis
- Diabetes drug tested to stop prediabetes in its tracks
- Can a 9-Hour eating window reset blood sugar and body rhythms?