Rainbow carrot juice: a new weapon against diabetes?

NCT ID NCT05319548

Completed Knowledge-focused Sponsor: University of Wisconsin, Madison Source: ClinicalTrials.gov ↗

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 2 times

Summary

This study looked at how pigments in different colored carrots (red, purple-red, and purple) affect the body's absorption of vitamin A and other nutrients. Twelve healthy adults drank each type of carrot juice over several weeks, and researchers measured changes in their blood. The goal was to see if combining certain pigments could boost health benefits, like antioxidant activity and blood sugar control.

What this could mean

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

Active substance: Carrot juice (red, purple-red, or purple)
What this could lead to: If successful, this could help design foods that maximize the health benefits of plant pigments, potentially aiding diabetes prevention.
What could go wrong: This is a small, early-stage study with only 12 healthy participants, so results may not apply to the general population or those with health conditions.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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As listed by the trial registrant

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

HEALTHY

Contacts and locations

Locations

UW-Madison Department of Nutritional Sciences

Madison, Wisconsin, 53706, United States

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