The trial followed forty adults for 24 weeks after assignment to a Curcuma longa extract containing turmeronols A and B and bisacurone or placebo. The duration offers a longer view than acute studies.

Authors report advantages in selected domains and time points, but not a uniform pattern across the full cognitive battery. Standardisation and endpoint specificity are therefore essential to interpretation.

For product development, this is a signal to investigate rather than a definitive conclusion. The small sample and multiple comparisons require confirmation before extending the finding to other extracts, doses or populations.

Why it matters

The study connects extract standardisation, duration and an endpoint battery while discouraging translation of one signal into a broad memory claim.

Evidence limit

Forty participants, multiple endpoints and selective results; larger, preregistered and independent studies are needed.

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