TL;DR

Protecting muscle on Ozempic or Wegovy comes down to five priorities, in order: enough protein, regular resistance training, creatine (3–5g/day), collagen for connective tissue, and covering micronutrients and hydration. Youth & Earth's Creatine and Collagen GLP-1 Formula are built to cover the supplement side of that stack — always discuss any addition with your prescriber first.

Introduction

If you're currently on a GLP-1 medication like Ozempic or Wegovy, you're likely experiencing significant weight loss — a truly positive step towards better health. However, as your body sheds excess weight, a common and important concern often emerges: how to ensure you're losing fat, not valuable muscle mass. It's a question we hear often: "What actually helps prevent muscle loss while taking Ozempic or Wegovy? I've heard protein and creatine are important, but what should I prioritise?"

This concern is entirely valid. While GLP-1s are highly effective tools for weight reduction, any significant and rapid weight loss can, unfortunately, lead to a reduction in lean muscle mass alongside fat.[1] Preserving muscle is crucial not just for physical strength and function, but also for maintaining a healthy metabolism and ensuring long-term success in your weight-management journey.

This article from Youth & Earth sets out a clear, prioritised, evidence-led guide to help you safeguard your muscle mass while on a GLP-1. If you'd like the fuller picture of how these medications work and the complete nutrition landscape around them, our complete guide covers that in depth: GLP-1 Medications Explained.

The Short Answer: Your Priority Order

To maximise muscle preservation while on a GLP-1 medication like Ozempic or Wegovy, work through these priorities in order:

1. Adequate protein intake: the foundation — consistently enough high-quality protein to supply your muscles' building blocks.
2. Resistance training: signals to your body that muscle is needed, helping prevent its breakdown.
3. Creatine supplementation: enhances your training and directly supports muscle energy and growth.
4. Collagen for connective tissue: protects skin and joint integrity during rapid weight loss while actively supporting natural GLP-1 and metabolic pathways.
5. Micronutrient sufficiency & hydration: keeps overall metabolism and muscle function running well.

Why Muscle Loss Happens on GLP-1s

GLP-1 medications like semaglutide (Ozempic, Wegovy) work primarily by suppressing appetite and slowing gastric emptying, leading to a significant reduction in calorie intake and, in turn, weight loss. That's highly effective for reducing overall body weight, including fat — but it creates a real challenge for muscle preservation.

To lose weight, you need to consume fewer calories than you burn. In a significant calorie deficit, your body needs to find energy from somewhere — ideally from fat stores, but without sufficient nutritional signals (especially protein) and physical signals (like resistance exercise), it can also break down lean muscle tissue. The faster the weight loss, the higher the share of that loss that tends to come from muscle rather than fat — and GLP-1 medications are known for producing substantial, relatively rapid weight loss in many people. The powerful appetite suppression that drives this can also make it genuinely difficult to eat enough protein: if you're simply eating less without consciously prioritising it, daily intake can fall below what your muscles need.

This isn't just about aesthetics. Muscle tissue is metabolically active — it burns more calories at rest than fat does — so preserving it helps maintain a healthier metabolic rate, supports long-term weight management, and protects strength, mobility and quality of life.

Priority 1–2: Protein + Resistance Training (The Foundation)

These two elements are non-negotiable and form the bedrock of any effective muscle-preservation strategy on a GLP-1.[2] Without them, everything else on this list is working much harder than it needs to.

1. Adequate protein intake: fuel for your muscles

Protein supplies the amino acids that are the building blocks for muscle repair and growth. When you're losing weight, getting enough of it signals to your body to preserve existing muscle tissue rather than break it down.

A good starting point for adults aiming to preserve muscle during weight loss is 1.2–1.6g of protein per kg of current body weight per day — for someone weighing 90kg, that's roughly 108–144g daily. Some people, particularly those more active or significantly overweight, may be advised slightly higher amounts by a registered dietitian.

• Make protein the star of the meal, not an afterthought.
• Favour lean sources: chicken, turkey, lean beef, fish, eggs, Greek yoghurt, cottage cheese, beans, lentils, tofu.
• Spread it across the day (roughly 25–40g per meal) rather than loading it into one sitting.
• If appetite suppression makes whole foods difficult, a quality whey, casein or plant-based protein powder can help — worth discussing with your prescriber or a dietitian.

2. Resistance training: the signal for muscle growth

Protein provides the building blocks, but resistance training provides the signal. Strength training creates microscopic tears in muscle fibres; your body then uses available protein to repair and rebuild them, stronger than before — which is exactly the process that resists muscle breakdown during a calorie deficit.

• Aim for 2–3 sessions a week, covering all major muscle groups.
• Weightlifting, bodyweight moves, resistance bands or gym classes all count.
• Progressively increase weight, reps or difficulty over time to keep stimulating adaptation.
• Start slowly if you're new to it, prioritise good form, and check with a fitness professional or your GP before beginning a new programme, especially alongside medication.

Priority 3: Creatine — The Evidence

With protein and training in place as your foundation, creatine is the next lever worth pulling.[3] It's among the most studied supplements in sports nutrition, with decades of trials across both athletic and general populations pointing consistently to strength, power and lean-mass benefits.

It works by helping regenerate ATP — the energy currency your cells rely on, particularly during short bursts of high-intensity effort like lifting weights — which lets you push a little harder or longer in a session. A stronger training stimulus is a stronger signal for muscle preservation. It also draws water into muscle cells, contributing to muscle fullness and supporting cellular processes relevant to muscle health, and by optimising the energy available to your muscles it creates a more favourable environment for muscle protein synthesis even in a calorie deficit.

A daily maintenance dose of 3–5 grams of creatine monohydrate is enough to saturate muscle stores over time for most people — no complex loading phase needed, though some protocols use 20g/day for 5–7 days to saturate more quickly. Consistency matters more than the exact approach.

Creatine has one of the strongest safety records of any supplement in healthy adults, but as with anything alongside a prescription medication, confirm with your prescriber that it's appropriate for your health status and won't interact with your GLP-1. For the full picture, see our dedicated guide: our creatine guide.

Priority 4–5: Collagen, Micronutrients, Hydration

With creatine covered, two more elements round out the stack: supporting connective tissue, and closing any nutritional gaps appetite suppression might otherwise leave open.

4. Collagen for connective tissue

Rapid weight loss can challenge skin elasticity and joint health.[4] While traditional collagen supplies the amino acids needed to maintain skin firmness and joint structure, advanced biopeptides like Nextida® go a step further. They protect your connective tissues while actively stimulating your body's native GLP-1 pathways—helping to optimise blood sugar control and metabolic efficiency alongside your treatment.

Consider a collagen supplement to proactively support these areas during your weight-loss journey.

For more detail on why collagen matters specifically on a GLP-1, see our dedicated article: Collagen on GLP-1 Medications.

5. Micronutrient sufficiency & hydration

Significantly reduced calorie intake brings a real risk of falling short on essential vitamins, minerals and fluids — all vital for muscle metabolism and recovery. Focus on nutrient-dense foods (fruit, vegetables, whole grains), with particular attention to vitamin D, B vitamins, iron, magnesium and zinc; if dietary intake stays limited, ask your prescriber or a dietitian whether a broad-spectrum multivitamin or targeted supplement makes sense. On hydration, aim for at least 2–3 litres of water a day (more if you're exercising) — dehydration can blunt performance and energy, and worsen GI side effects some people experience on GLP-1s; electrolyte-rich fluids can help if that's the case for you.

Putting It Together: A Simple GLP-1 Muscle-Preservation Stack

At Youth & Earth, we've built our Creatine and Collagen GLP-1 Formula to cover the supplement side of this stack — so you're not left sourcing the muscle-energy side and the connective-tissue side from separate places. Combined with the foundational habits of protein and resistance training, that gives you a complete, practical approach to preserving muscle and supporting your body through a GLP-1 journey:

This combination of foundational habits and targeted, evidence-informed supplementation gives you a robust way to preserve muscle, support connective tissue and maintain overall wellness during your GLP-1 journey — one stack covering both sides of muscle preservation, rather than several separate products stitched together.

Before starting any new supplement, including creatine or our Collagen GLP-1 Formula, discuss it with your prescriber, GP or a registered dietitian to make sure it's safe and appropriate for your circumstances and won't interact with your GLP-1 medication or any other conditions you have.

Coming soon: the Youth & Earth Collagen GLP-1 Formula

Our Collagen GLP-1 Formula is launching soon. Join the waitlist below and we'll be first to let you know the moment it's available — by email, and by text too if you'd like.

Frequently Asked Questions

What supplements actually help prevent muscle loss on Ozempic or Wegovy?

Protein and resistance training do the heavy lifting, with creatine (3–5g/day) as the strongest supporting supplement for muscle energy and strength. Collagen and covering any micronutrient gaps play a smaller, supportive role alongside those three. Discuss any addition with your prescriber first.

How much protein do I need on a GLP-1 to protect muscle?

A common starting point is 1.2–1.6g of protein per kg of body weight per day — for a 90kg person, that's roughly 108–144g, spread across meals. Appetite suppression can make this harder to hit from food alone, which is where a protein supplement sometimes helps.

Is creatine safe to take while on a GLP-1 medication?

Creatine has one of the best safety records of any supplement in healthy adults, but confirm with your prescriber before adding it — particularly to check it won't interact with your specific medication or any other health conditions you have.

Do I need to do resistance training, or are supplements enough?

Resistance training isn't optional here — it's the physical signal that tells your body to keep muscle rather than break it down, and supplements like creatine work by making that training more effective, not by replacing it.

Should I take collagen as well as protein and creatine on a GLP-1?

Collagen won't directly prevent muscle loss, but it can support skin elasticity and connective tissue health during rapid weight changes. Advanced formulas such as Nextida® can also support natural GLP-1 production. See our dedicated article for the full picture: Collagen on GLP-1 Medications.

References

[1] Eisa N, Barood O. Lean Mass Changes With Incretin Therapy Versus Lifestyle Intervention: A Systematic Review and Meta-Analysis of Randomised Controlled Trials. Diabetes Obes Metab. 2026;28(6):4818-4827. DOI: https://doi.org/10.1111/dom.70666

[2] Deller C, et al. Effects of Calorie Restriction With and Without Strength, Endurance or Mixed Training on Fat-Free and Skeletal Muscle Mass in Overweight or Obese Individuals—A Systematic Review With Pairwise Meta-Analysis and Network Meta-Analysis of Randomized Controlled Studies. Diabetes Obes Metab. 2026. DOI: https://doi.org/10.1111/dom.70873

[3] Desai I, Wewege MA, Jones MD, et al. The Effect of Creatine Supplementation on Resistance Training-Based Changes to Body Composition: A Systematic Review and Meta-analysis. J Strength Cond Res. 2024;38(10):1813-1821. DOI: https://doi.org/10.1519/JSC.0000000000004862

[4] Pu SY, Huang YL, Pu CM, et al. Effects of Oral Collagen for Skin Anti-Aging: A Systematic Review and Meta-Analysis. Nutrients. 2023;15(9):2080. DOI: https://doi.org/10.3390/nu15092080