16-Year study: does your Body's fuel flexibility predict future health?
NCT ID NCT06340321
First seen Jun 26, 2026 · Last updated Jun 26, 2026
Summary
This study looks at whether the body's ability to switch between burning fat and sugar (called metabolic flexibility) is linked to changes in metabolic health over 16 years. Researchers will re-examine 18 people who had their metabolic flexibility measured in 2008-2009. They will check weight, blood sugar, cholesterol, and blood pressure to see if those with better flexibility stayed healthier.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this could help clarify whether poor metabolic flexibility is a cause or a result of metabolic diseases like obesity and diabetes.
- What could go wrong
- This is a small, observational follow-up study with only 18 participants. It cannot prove cause and effect, and results may not apply to the general population.
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.
- Participants
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18 people
The number who actually took part.
- Started
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Oct 2024
- Finished
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Aug 2025
- 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.
Who is studied
Individuals who participated in the InSight study at Pennington Biomedical in 2008-2009. Such study enrolled healthy men and women aged 20-36 years, with a body mass index \<27.5 kg/m2, and a fasting glycemia \<126 mg/dL.
- Ages
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20 to 65 years
- 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: * Individuals who participated in the InSight study at Pennington Biomedical in 2008-2009. Exclusion Criteria: * Women who are currently pregnant or breastfeeding, have been pregnant in the last 12 months, and/or were breastfeeding in the last 6 months.
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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.
Contacts and locations
Locations
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Pennington Biomedical Research Center
Baton Rouge, Louisiana, 70808, United States
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