Muscle Loss, Weight Loss and Ageing: Why Protecting Muscle Matters

At The Mayfield Clinic by Dr Nestor in Edinburgh, we are seeing a shift in how patients think about health, weight loss and ageing. Increasingly, the focus is not just on how much weight is lost, but on what is being lost.

Muscle plays a central role in how we look, feel and function, yet it is often overlooked. Whether through ageing or the use of GLP-1 receptor agonists such as Ozempic and Mounjaro, muscle loss is becoming one of the most important considerations in modern clinic practice and wellness care.

What is Muscle Loss and Why Does It Matter?

A decline in muscle mass and function, known as sarcopenia, represents one of the most clinically significant hallmarks of ageing. It occurs with age and lifestyle changes. From around the age of 50, muscle mass can decrease by around 1% per year, with strength declining even more quickly. These rates accelerate in sedentary individuals, those experiencing chronic disease and patients exposed to prolonged caloric restriction.

This is not just a cosmetic concern. Muscle is a metabolically active tissue that supports:

• Blood sugar regulation
• Energy levels and metabolism
• Strength, posture and mobility
• Long-term health and resilience

At our Edinburgh clinic, we view muscle as a key marker of health, not just appearance.

GLP-1 Weight Loss and Muscle Loss: What You Need to Know

GLP-1 medications, including Ozempic and Mounjaro, have transformed medical weight loss in Edinburgh and across the world. They are highly effective at reducing appetite and supporting weight reduction.

However, the emergence of GLP-1 receptor agonists introduces a new dimension to the clinical management of muscle. Rapid calorie deficit creates a physiological environment in which muscle protein breakdown may exceed synthesis. Research shows that 25-39% of total weight lost during GLP-1 treatments can come from lean tissue, including muscle.

Loss of skeletal muscle reduces resting energy expenditure and impairs glucose disposal, paradoxically undermining some of the metabolic benefits achieved through weight reduction. This means that while patients may be losing weight, they may also be losing strength, metabolic efficiency and long-term resilience.

At The Mayfield Clinic, we focus on GLP-1 muscle loss prevention, ensuring that weight loss is achieved in a way that supports both aesthetics and health.

Why Muscle Preservation is Key to Better Results

Protecting skeletal muscle is essential for ensuring that weight loss translates into functional improvement rather than physiological compromise. t’s also essential for:

• Maintaining metabolic rate
• Supporting long-term weight maintenance
• Improving strength and energy
• Enhancing aesthetic outcomes

Patients who preserve muscle often experience better skin quality, improved body tone and more natural, balanced results from treatments. This is why our approach to muscle loss treatment in Edinburgh is always proactive, not reactive.

How We Assess Muscle Health at The Mayfield Clinic

We go beyond the number on the scales by focusing on nutrition and body composition analysis in Edinburgh. This allows us to understand the balance between fat and muscle, rather than weight alone.

Our approach includes:

• Clinical assessment of strength and function
• Body composition tracking over time
• Personalised treatment planning
• Advanced treatments

How to Prevent Muscle Loss

1. Nutrition and Protein Intake

Adequate protein intake is essential for maintaining muscle, particularly during weight loss. We guide patients on how to support protein intake for muscle preservation in a way that fits into daily life. We can also discuss supplments.

2. Resistance Training

Strength-based exercise is one of the most effective ways to maintain muscle. Even two to four sessions per week can make a meaningful difference.

We often advise patients on resistance training for muscle loss prevention, ensuring it is realistic, sustainable and tailored to their lifestyle.

3. A Structured, Medical Approach

The Mayfield Clinic by Dr Nestor combine medical expertise with practical lifestyle strategies. Our goal is to create a plan that supports both short-term results and long-term health.

Advanced Treatments: Supporting Muscle with Technology

For some patients, particularly those looking to enhance results, advanced treatments can play a role. We offer EMFace in Edinburgh, alongside other muscle stimulation treatments including TruSculpt Flex, a non-invasive, personalised muscle-building treatment which helps activate deeper muscle layers and improve tone. We also over SkinVive, an injectable treatment which improves skin smoothness, elasticity and hydration.

Secret RF can also improve ageing skin, photo-damage, fine lines and wrinkles on the face and neck.

A New Approach to Wellness and Aesthetic Medicine

The future of aesthetic medicine is shifting towards a more holistic model, where preventative health, metabolic function and aesthetics are closely linked. At The Mayfield Clinic by Dr Nestor, we are proud to be at the forefront of this approach. As a leading aesthetic and medical clinic in Edinburgh, we combine:

• Medical weight loss support
• Education and support around nutrition, macros, hydration and supplements
• Nutrigenomics testing, a DNA test showing how your genes interact with food and nutrients
• Personalised wellness plans
• Advanced treatments

This ensures our patients achieve results that are not only visible, but sustainable.

Muscle is not just about strength or appearance. It is a cornerstone of long-term health, energy and confidence. It is a determinant of longevity, independence and metabolic stability. Ageing and pharmacological weight loss both threaten skeletal muscle integrity through mechanisms that accelerate protein breakdown and impair anabolic signalling.

Whether you are considering GLP-1 treatments, looking to improve your body composition, or simply wanting to age well, protecting muscle should be a key part of your plan.

At The Mayfield Clinic by Dr Nestor in Edinburgh, we are here to guide you through that journey with expertise, care and a truly personalised approach.

Source: Adapted from Aesthetics Journal (March 2026): Treating Muscle Loss with Devices by Dr Nestor Demosthenous and Amanda Demosthenous

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[Aesthetics Journal]