PKU diet in childhood may shape adult IQ, study finds
NCT ID NCT04433728
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at adults with phenylketonuria (PKU) who were diagnosed as newborns and treated with a special diet. Researchers want to see if how long and how strictly they followed the diet as children affects their intelligence (IQ) as adults. The goal is to use this information to improve future dietary recommendations for children with PKU.
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 doctors refine dietary guidelines for children with PKU to improve their long-term thinking and memory.
What could go wrong
This study was terminated early and only includes 42 people from one region, so results may not apply widely. It looks back at past records, which can be less reliable.
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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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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
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Locations
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chu de Lille
Lille, France