Muscle Preservation with GLP-1 Medications

A dietitian provides personalised nutrition support specifically focused on protecting lean mass during GLP-1 receptor agonist therapy. This includes calculating individual protein targets, developing strategies to meet those targets despite dramatically suppressed appetite, applying meal structuring for optimal muscle protein synthesis, managing nutritional side effects, providing evidence-based supplement guidance, and aligning food intake with resistance exercise for maximum lean mass preservation. 

Not a generic guideline, but a protein target based on your body weight, stage of treatment, age, and activity level. For most people on GLP-1 medications, this ends up being higher than expected and significantly harder to achieve on a reduced appetite without a clear plan. 

This is where most people struggle, and where generic advice falls apart. We work through meal timing, food choices, portion strategies, and realistic ways to meet protein needs—even when food feels unappealing or fullness arrives quickly. 

On a reduced appetite, every meal needs to do more. Spreading protein across the day helps support muscle maintenance without relying on portion sizes that simply aren’t realistic during GLP-1 therapy. 

Nausea, reflux, early fullness, and food aversions can quietly derail protein intake. Lara uses targeted strategies to maintain nutritional adequacy through these challenges, without turning eating into a clinical task. 

Protein supplements can be useful when food intake is genuinely insufficient but the market is full of products that promise more than they deliver. We focus on what the evidence actually supports: which protein sources are effective, whether collagen contributes meaningfully, and when supplementation is worth using. 

Resistance training is the other half of the lean mass equation. We work through how to align protein intake and meal timing with training, whether you’re returning to exercise or starting from scratch. 

Yes. This combination increases the risk, and it makes protein intake harder to get right. As estrogen declines, the body becomes less efficient at maintaining muscle. On a GLP-1 medication, reduced appetite makes it harder to eat enough and to spread protein across the day. This is where a clear structure matters. Protein targets, timing, and food choices need to be more deliberate to maintain muscle in this phase.

For adults over 60, muscle loss during weight reduction has real consequences. Strength, balance, and mobility all depend on muscle mass, and once it’s lost, it’s harder to regain. On a reduced appetite, the risk isn’t just eating less, it’s not getting enough protein, often enough, to maintain it. This is why protein targets, distribution across the day, and resistance exercise become essential rather than optional.

No. Exercise and nutrition need to work together. Resistance training provides the stimulus, but without enough protein, spread across the day, the body has limited capacity to respond. This becomes more pronounced when appetite is reduced. Nutrition support ensures that the effort going into exercise is matched by the intake needed to maintain muscle.

No referral is required to book directly with Lara. However, if you are using a GLP-1 medication for a qualifying chronic condition, a GP referral under a Chronic Disease Management (CDM) Plan can provide a Medicare rebate of approximately $61.80 per session for up to 5 allied health consultations per calendar year. Asking your GP about a CDM referral before booking can significantly reduce the out-of-pocket cost of your consultations. 

Yes. Diverse Dietetics offers telehealth consultations to patients anywhere in Australia. For clients in the Moreton Bay region, home visits are also available by prior arrangement.