Research
Energy balance
Bariatric surgery is associated with a 42.4% reduction in fat mass (FM) at 6 months, 49.7% at 12 months, and 49.7% at 24 months.
Bariatric surgery significantly reduces fat mass in patients over a 24-month period.
StrongSupportsmedium confidence
Adjusted mean relative FM reductions in the surgery group were 42.4% (95% CI, 41.5%-43.2%) at 6 months, 49.7% (95% CI, 48.8%-50.6%) at 12 months, and 49.7% (95% CI, 47.8%-51.5%) at 24 months.
Why this rating
Based on a large cohort study design.
Source
Body Composition Changes After Bariatric Surgery or Treatment With GLP-1 Receptor Agonists
Zicheng Wang et al. · JAMA Network Open · 2026
DOI 10.1001/jamanetworkopen.2025.53323
cohort · n=3066Cited 2×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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