By Dr. Braden Parmer, Medical Director
Over the past few years, medications such as Ozempic, Wegovy and similar drugs have become increasingly common tools in helping people manage diabetes and achieve meaningful weight loss. For many individuals, these medications have been life-changing in a positive way. As their use has expanded, questions have also emerged, particularly around whether weight loss from these medications may include loss of muscle and not just fat. This is an important and reasonable concern, and fortunately it is one we can address with good information and practical steps. We prefer to lose fat and keep the muscle, not the reverse!
Research shows that when people lose weight, whether through medication, surgery or diet alone, some degree of muscle loss can occur. This is not unique to any single drug. When the body is in a calorie deficit, it draws energy from both fat and lean tissue unless deliberate steps are taken to preserve muscle. With medications like semaglutide or tirzepatide, the majority of weight lost is fat, but a smaller percentage may be lean mass. The key point is that muscle loss is not inevitable and is often preventable with the right approach to nutrition and activity. Ozempic won’t sneak in and suddenly erase your biceps.
Aging itself also plays a role. Beginning in our 30s and 40s, most adults gradually lose muscle mass, a process known as sarcopenia. This becomes more noticeable in our 50s and beyond if we are not actively engaging our muscles through resistance exercise and adequate protein intake. Because of this natural trend, muscle loss seen during weight reduction may be partly related to age rather than the medication alone. In many cases, the medication simply brings attention to a process that was already underway. The encouraging news is that muscle is one of the most responsive tissues in the human body. At almost any age, it can be strengthened.
Starting a strength routine later in life does not require lifting heavy weights or joining an intense gym environment filled with people who appear to have been born doing push-ups. In fact, the safest and most sustainable approach is often the simplest. Body-weight exercises such as squats to a chair, wall push-ups, or gentle lunges can be very effective. Resistance bands provide adjustable tension without placing excess stress on joints. Light free weights, often five to ten pounds, can be used with slow and controlled movements. Two to three short sessions per week, with rest days in between, are typically sufficient to begin seeing progress. Listening to your body is essential. Mild soreness is expected. Sharp pain is not. Individuals with heart conditions, joint disease, or chronic illnesses should speak with their physician before beginning a new exercise routine. A physical therapist or a trainer experienced with older adults can also provide helpful guidance. Consistency matters far more than intensity. Ten to fifteen minutes performed regularly will usually provide more benefit than one heroic workout that requires a week of recovery and several apologies to your knees.
Exercise alone is only half of the equation. Muscle maintenance depends heavily on adequate nutrition, particularly protein intake. Prioritizing protein at each meal is one of the most practical steps a person can take. Lean meats, fish, eggs, beans, lentils, Greek yogurt and cottage cheese are excellent sources. Balanced meals are more beneficial than extreme dieting, as very low-calorie diets increase the risk of muscle loss. Staying hydrated supports energy levels and physical performance. Vitamin D and calcium are also important, especially for older adults, because bone and muscle health are closely connected. Many adults over the age of 50 benefit from aiming for roughly 20 to 30 grams of protein per meal, although individual needs can vary. Anyone with kidney disease or other chronic medical conditions should seek personalized advice from their healthcare provider. Muscles appreciate a grilled chicken breast more than they appreciate another sleeve of cookies!
Weight-loss medications can be valuable tools when used appropriately and under medical supervision. They are not shortcuts, and they are not replacements for healthy habits. They tend to work best when paired with strength training, balanced nutrition and regular follow-up with a healthcare provider. Muscle is more than appearance. It supports balance, protects joints, improves metabolism and reduces fall risk. Preserving muscle is one of the most impactful steps we can take for long-term health and independence. Whether someone is considering a weight-loss medication or simply thinking about staying strong as the years pass, the message remains the same. Move your body, nourish it well and work with your healthcare team. Small, steady efforts often lead to meaningful and lasting results.