Rainbow carrots: a secret weapon for health?
NCT ID NCT05319548
First seen Jan 11, 2026 · Last updated Jun 22, 2026 · Updated 18 times
Summary
This study looked at whether the natural pigments in different colored carrots (red, purple-red, and purple) affect how well the body absorbs nutrients like vitamin A and whether they have any effect on blood sugar control. Twelve healthy adults drank different carrot juices over several weeks, and researchers measured changes in their blood. The goal was to understand if eating a mix of pigments from colorful carrots is better than eating just one type.
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This is a summary of
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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Contacts and locations
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Locations
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UW-Madison Department of Nutritional Sciences
Madison, Wisconsin, 53706, United States
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 us understand how eating colorful carrots together might boost the body's absorption of vitamin A and other beneficial plant compounds.
What could go wrong
This is a very small, early study with only 12 healthy people. It looks at short-term changes in blood levels, not long-term health effects. Results may not apply to people with health conditions.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.