The Claim

Among obese adults treated with tirzepatide or semaglutide, a higher proportion of female individuals achieve ≥15% weight loss compared to male individuals, with 74.9% of high responders being female for tirzepatide and 80.3% for semaglutide.

Source: Weight-loss dynamics with tirzepatide versus semaglutide

What the research says

Challenges is higher

Challenge is ahead, but a single strong supporting study can change this.

Supports
0score
Challenges
59score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

In obese adults using tirzepatide or semaglutide for weight loss, women make up a larger share of those who lose at least 15% of their body weight than men.

See the scientific wording

Among obese adults, women are more likely than men to achieve high weight loss (≥15%) with either tirzepatide or semaglutide, with 74.9% of high responders being female for tirzepatide and 80.3% for semaglutide, suggesting sex-based differences in treatment response.

Why this might work

Women have higher levels of hormones that make fat cells more responsive to weight-loss drugs, and their brains are more sensitive to signals that reduce hunger, leading to greater fat loss.

Suggested mechanismbased on 1 study

What the research says

1 study
  1. Study: Weight-loss dynamics with tirzepatide versus semaglutide

    The study says more women than men lost a lot of weight on these drugs, but it doesn’t say exactly how many women made up the high-weight-loss group, so we can’t confirm the claim’s specific numbers.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.