Plasma metabolomic signatures of adults at elevated-cardiovascular disease risk show improvements in diet quality in response to medical nutrition therapy.
Erin D Clarke, Jordan Stanford, María Gómez-Martín et al.
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In 30 seconds
This randomized controlled trial report evaluated whether plasma metabolomic signatures developed in a controlled feeding study could track diet-quality changes during medical nutrition therapy (MNT). In a subsample of 11 rural adults screened as being at elevated cardiovascular disease risk, participants received personalised dietitian-led MNT over 6 months. Diet quality increased significantly (p < 0.001), and metabolite profiles at 3 and 6 months aligned more closely with the previously defined healthy dietary pattern. Five metabolites changed significantly; ethylmalonate and glycosyl-N-stearoyl-sphingosine were reduced at both follow-up points.
Key findings
- Diet quality increased across the 6-month MNT intervention (p < 0.001).
- Post-intervention metabolite profiles at 3 and 6 months aligned more closely with the healthy dietary-pattern signature.
- Five metabolites changed significantly; ethylmalonate and glycosyl-N-stearoyl-sphingosine were reduced at both 3 and 6 months.
Why it matters
The findings suggest that metabolomic signatures derived under controlled feeding conditions may also help map diet-quality changes during personalised nutrition counselling in adults at elevated cardiovascular risk. Such measures could complement dietary assessment, although this small study establishes neither clinical outcome benefit nor the value of using the signatures to guide care.
What to keep in mind
The analysis included only 11 participants, and the authors state that larger, independent cohorts are needed.