The Study
Once-Weekly Semaglutide in Adults with Overweight or Obesity.
This study is like a fair science experiment where people were randomly split into two groups: one got the real medicine (semaglutide) and the other got a fake one (placebo), and neither the patients nor doctors knew who got what. This helps prove that any weight loss was actually caused by the medicine, not just chance or other factors.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
Some people took a shot once a week with a medicine called semaglutide, while others took a fake shot. Everyone also got advice on eating and exercise. The ones who took semaglutide lost much more weight.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 582 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Losing 15% of body weight is a big deal—it can make someone feel much better and lower their risk of heart disease, diabetes, and other serious problems.
- 2People on semaglutide lost 15% of their weight on average.
- 386% lost at least 5% of their weight, and half lost 15% or more.
- 4They also had smaller bellies, better blood pressure, and felt healthier.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
The New England journal of medicine
Year
2021
Authors
J. Wilding, R. Batterham, S. Calanna, M. Davies, L. V. Van Gaal, I. Lingvay, B. McGowan, J. Rosenstock, Marie T D Tran, T. Wadden, S. Wharton, K. Yokote, N. Zeuthen, R. Kushner
Related Content
Videos (3)
Claims (7)
When a drug like semaglutide turns on certain brain and body signals, it helps people feel fuller, eat less, and lose about 15% of their body weight on average.
A weekly shot called semaglutide helped people with extra weight lose nearly 6 inches off their waist over a year and a half, much more than a fake treatment did — which means it may really help reduce belly fat and lower heart and metabolic disease risks.
For adults who aren't diabetic but carry extra weight, a weekly injection of semaglutide (2.4 mg) plus healthy lifestyle changes led to nearly 15% weight loss over a year and a half—way more than lifestyle changes alone.
Taking a weekly semaglutide shot (2.4 mg) for about a year and a half can help lower blood pressure, blood sugar, bad cholesterol, and body-wide inflammation in adults with extra weight but no diabetes—better than a placebo.
Taking a weekly semaglutide shot (2.4 mg) for about a year helps people with extra weight feel more physically capable and improves their overall quality of life—more than a dummy pill would.
People without diabetes who are overweight or obese and take a weekly 2.4 mg dose of semaglutide often get mild stomach issues like nausea, diarrhea, or vomiting, but most keep taking it — only a small number stop because of these side effects.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.