Sparkling water vs. soda: a tasty way to cut sugar in teens?

NCT ID NCT07223151

Recruiting now Symptom relief Sponsor: Nana Gletsu Miller Source: ClinicalTrials.gov ↗

First seen Jun 25, 2026 · Last updated Aug 07, 2026 · Updated 3 times

Summary

This study tests whether replacing sugary sodas with unsweetened sparkling water can reduce added sugar intake and improve health in Black/African American and Latine adolescents with obesity who love sweet drinks. For 4 weeks, participants swap their sodas for one of three options: flavored sparkling water, plain water, or gradually less sweet drinks. Researchers will measure changes in taste preferences, diet quality, and metabolic health over 8 weeks.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: unsweetened sparkling water
What this could lead to: If it works, this could point toward a simple, low-cost way to help teens cut added sugar and improve their diet and metabolic health.
What could go wrong: This is a small, early-stage behavioral study (63 participants) that relies on self-reported diet and taste changes, so results may not apply broadly or lead to lasting habits.

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Conditions

The condition(s) this trial relates to.

Feeding Behavior Insulin Resistance Obesity obesity disorder Pediatric Obesity

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

DIETARY SUGARS FEEDING BEHAVIOR INSULIN RESISTANCE OBESITY, ADOLESCENT TASTE PERCEPTION

Contacts and locations

Locations

Indiana University Hospital
RECRUITING

Indianapolis, Indiana, 46202, United States
Indiana University School of Public Health - Bloomington
NOT_YET_RECRUITING

Bloomington, Indiana, 47405, United States
Purdue University
RECRUITING

West Lafayette, Indiana, 47907, United States

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