LSU Researcher Probes GLP-1 Muscle Loss in 1.5-Year Study as Patients Shed 15% to 25%
Updated
Updated · The Advocate · Jun 29
LSU Researcher Probes GLP-1 Muscle Loss in 1.5-Year Study as Patients Shed 15% to 25%
2 articles · Updated · The Advocate · Jun 29
Summary
Dr. Eric Ravussin at LSU’s Pennington Biomedical launched a 1.5-year study tracking how GLP-1 drugs affect resting metabolism and muscle mass during weight loss.
Participants will spend 23 hours at a time in Pennington’s metabolic chamber, which measures oxygen use and carbon dioxide output to calculate calorie burn at rest.
The work targets “metabolic adaptation” — the drop in energy expenditure that can stall weight loss after roughly 20% is lost in six months and contribute to regain.
Ravussin is also testing whether adding a metabolism-boosting substance to GLP-1 treatment could limit that slowdown, while using MRI to check whether muscle loss is less severe than widely feared.
The study addresses a growing clinical issue as GLP-1 users typically lose 15% to 25% of body weight in a year, while doctors say adequate protein and resistance exercise can help keep muscle loss minimal.
Is the panic over GLP-1 muscle loss justified, or a normal part of any major weight loss?
Beyond muscle loss, what are the hidden long-term risks of overriding our body's natural metabolism?
When will a 'muscle-sparing' Ozempic-like drug actually be available for patients?
Muscle Loss in GLP-1-Based Obesity Treatments: Clinical Risks, Combination Therapies, and Best Practices
Overview
This report highlights the growing focus on preserving muscle mass during weight loss with incretin-based therapies, which work by targeting appetite and metabolism. While these therapies are effective for reducing body fat, they can also lead to unwanted muscle loss, making it crucial to find ways to protect lean muscle. Ongoing research, such as Dr. Eric Ravussin’s study at LSU Pennington Biomedical Research Center, is exploring combination therapies like CagriSema to address this challenge. These efforts aim to ensure that future weight loss treatments not only help people lose fat but also maintain their muscle and overall health.