what is actually proven about the female body after forty

Weight loss and GLP-1

Efficacy and Safety of Mazdutide in Managing Overweight and Obesity Among Non-Diabetic Adults: A Meta-Analysis of Randomised Controlled Trials.

5 Repeated evidence

How much this weighs: several studies in people, combined — the strongest kind of evidence there is.
Type of study
meta-analysis or systematic review
Studied in
people
Participants
not stated in the abstract
Published
2026 in Diabetes, obesity & metabolism
Cited
0 times by other research
Who paid
Not declared. PubMed carries no conflict-of-interest statement for most articles; that is not the same as independent.
Source
PubMed 41804840 · doi 10.1111/dom.70643
The plain-language write-up of this study is still being written. Below is the abstract exactly as the researchers published it.
Abstract by the researchers — original text

BACKGROUND: Mazdutide, a dual GLP-1 and glucagon receptor agonist, shows promise for weight loss and glycaemic control. This study evaluates its efficacy in non-diabetic patients with obesity. METHODOLOGY: A search of Cochrane Library, PubMed, Google Scholar and clinicaltrials.gov identified randomised controlled trials (RCTs) of mazdutide in adults (≥ 18 years) with obesity. Meta-analysis was performed using RevMan 5.4 with random-effect models. RESULTS: Five RCTs were included. Mazdutide significantly reduced percentage body weight (MD = -12.42%, 95% CI: -16.15% to -8.68%), absolute body weight (MD = -9.76 kg, 95% CI: -13.15 to -6.37 kg) and waist circumference (MD = -7.98 cm, 95% CI: -10.24 to -5.72 cm). Systolic blood pressure (MD = -7.68 mmHg), total cholesterol (MD = -0.57 mmol/L) and LDL (MD = -0.37 mmol/L) also decreased. Adverse events were slightly increased (RR = 1.12). Dose-wise meta-regression showed significant effects (β = -0.99, 95% CI: -1.81 to -0.16; p = 0.0187). CONCLUSION: Mazdutide effectively reduces weight, waist circumference and blood pressure but may cause mild to moderate adverse events. Findings are limited by the small number of RCTs.