The GLP-1 market is massive. A recent survey by health research group KFF reports that 1 in 8 US adults say they are currently taking a GLP-1 drug. This series asks health specialists about how the drug affects lifestyle factors, and its potential beyond weight loss.
GLP-1 medications have helped many people achieve significant weight loss, improve blood sugar control, and reduce obesity-related health risks. However, as the number of users grows, so does interest in a common question...
Can you lose muscle while losing weight on a GLP-1?
The short answer is yes. Anytime the body loses weight, some muscle loss can occur alongside fat loss. Because GLP-1 medications reduce appetite and help people eat less, some patients may struggle to consume enough protein and calories to support muscle maintenance.
These are the most important ways to maintain muscle while taking a GLP-1 drug.
Protein (and the “Meat Ick”)
Patients on GLP-1 medications find they feel full quickly, which means it’s important to choose nutrient-dense foods first. Frontload with protein as often as you can, which provides the building blocks that muscles need to repair and build.
Lean meats, fish, eggs, Greek yogurt, cottage cheese, beans, and protein shakes can help patients meet their daily protein goals. Ask your healthcare provider or dietitian about your specific target based on age, weight, and activity level. As a general rule, 20-30 grams per meal is an excellent goal.
The “Meat Ick” on GLP-1s
A sudden loss of appetite for meat is sometimes reported while GLP-1s, dubbed the “meat ick.” It’s a food aversion that may be attributed to meat’s slow digestion in the gut or the “richness” of certain meats which are no longer tolerated.
For those with a meat aversion, some people report that softer protein sources like eggs, shredded chicken in a slow cooker, Greek yogurt, cottage cheese, or bone broth go down a little easier.
Exercise of Choice: Strength Training
Exercise is one of the most effective tools for preserving muscle mass during weight loss, particularly strength training. Resistance training sends a signal to the body that muscle tissue is needed and should be maintained.
Don’t sweat about spending hours at the gym. Bodyweight exercises, resistance bands, weight machines, or free weights performed a few times each week can help maintain strength and support healthy body composition.
Steady VS Rapid Weight Loss
Many patients are eager to see the scale move quickly, but losing weight too fast may increase the risk of losing lean tissue.
Physicians want to see a steady, sustainable rate of weight loss while ensuring that patients continue eating adequate nutrients. This is achieved with a dosage that reduces appetite enough for gradual weight loss, but still keeps the patient's hunger and fullness signals. The goal is not simply to weigh less, but to improve overall health and function.
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GLP-1 medications are a breakthrough in weigh management, but they work best when paired with healthy lifestyle habits. The best habits for muscle? Prioritizing protein, strength training, and balanced nutrition.