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Randomised trialsFat

Smaller waist, less inflammation

Published in
Biol Res Nurs 2022
People studied
1,246

In 6 trials with 1,246 adults with metabolic syndrome, a cluster of heart risk factors, diet and activity programmes took about 3 cm off the waist and lowered markers of inflammation.

Checked against
PubMed 34702086
Published in
Biol Res Nurs 2022
Last checked
30 October 2026

Key takeaway

This pooled analysis of 6 randomised trials looked at 1,246 adults with overweight or obesity and metabolic syndrome, a cluster of heart risk factors. The diet and activity programmes lasted 6 to 12 months. Compared with control groups, they reduced waist size by about 3 cm, lowered the inflammation markers CRP and IL-6, and raised adiponectin, a hormone from fat tissue linked with better blood sugar control.

At a glance

Type of study
pooled analysis of randomised trials (meta-analysis)
People studied
1,246
How long
6 to 12 months
Compared with
control groups
Main result
About 3 cm off the waist, with lower inflammation markers.
Strength of evidence
Randomised trials

What this study does not show

Only 6 trials, all in people with metabolic syndrome, and the authors call for higher-quality research. The abstract does not say how much weight was lost.

Results from studies in groups of people, mostly in diet and movement programmes. They cannot be promised to any one person. This information is educational and does not replace a consultation with a doctor.

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