Research

Hormonal

Tirzepatide treatment (10-15 mg once weekly) significantly improves waist-to-height ratio (WHtR) categories compared to placebo, with 54.7% of participants improving their WHtR category at 72 weeks versus 9.6% on placebo.

If you have obesity or overweight with related health complications, treatment with tirzepatide (10-15 mg weekly) combined with lifestyle changes significantly improves your waist-to-height ratio, a key marker for cardiometabolic risk, far more effectively than placebo. This suggests a substantial reduction in central adiposity.

GoodSupportsHIGH confidence
At Week 72, 54.7% of participants treated with 10 mg or 15 mg tirzepatide improved WHtR categories compared with 9.6% of participants treated with placebo
Naveed Sattar et al. · Journal of Endocrinological Investigation · 2026

Why this rating

Based on a Phase 3, double-blind, randomized, placebo-controlled trial (SURMOUNT-1), which is high-quality evidence, though this specific analysis is post-hoc.

Source

Shifts in waist-to-height ratio categories within tirzepatide groups: a post-hoc analysis of SURMOUNT-1

Naveed Sattar et al. · Journal of Endocrinological Investigation · 2026

DOI 10.1007/s40618-026-02883-7

rct · n=2538
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

This is one finding among thousands. Every one is graded and traced to its source, so you can see what the evidence actually supports. Browse the research →