Why You Should Prioritise Protein on a Weight Loss Medication (GLP-1)

GLP-1 medications are changing the way many people approach weight management and blood sugar control. While these medications can be incredibly effective at reducing appetite and supporting weight loss, they can also make it harder to eat enough overall, especially enough protein.

Why Is Protein So Important on a GLP-1?

GLP-1 medications work partly by slowing stomach emptying and increasing feelings of fullness. This often leads to eating less food overall, which can be helpful for weight loss, but it also means there’s a higher risk of not meeting your nutrition needs.

Adequate protein intake is important for:

Preserving Muscle Mass

When weight loss occurs, the body can lose muscle as well as fat. Eating enough protein alongside resistance training can help protect lean muscle mass during weight loss.

Recovery and Strength

Protein plays an important role in muscle repair, recovery, immune function, overall health and supporting physical activity.

Blood Sugar Regulation

Including protein regularly throughout the day can help support more balanced blood sugar levels and reduce large fluctuations in hunger and energy.

Signs You May Not Be Eating Enough Protein

Some common signs can include:

• Feeling weak or fatigued

• Increased muscle soreness

• Hair thinning

• Struggling to recover from exercise

• Feeling full quickly but not nourished

• Unintentional skipping of meals

• Rapid weight loss with noticeable muscle loss

• Because appetite is often reduced on a GLP-1, many people unintentionally under-eat protein without realising it.

Practical Tips to Increase Protein Intake on a GLP-1

Prioritise Protein First

When appetite is low, start meals with your protein source first before moving onto other foods.

Examples:

• Eggs

• Greek yoghurt

• Chicken

• Fish

• Tofu or tempeh

• Cottage cheese

• Lean meats/poultry

• Edamame

Eat Small Amounts More Often

Large meals can feel uncomfortable on a GLP-1. Smaller, protein-rich meals and snacks spread throughout the day are often easier to tolerate.

Include Protein at Every Meal and Snack

Rather than trying to eat a huge amount at dinner, aim to distribute protein consistently across the day.

Choose Easy-to-Eat Protein Sources

Some people find softer or fluid protein options easier when appetite is low or nausea is present.

Examples:

• Smoothies made with protein powder or high protein Greek yoghurt e.g. Yopro

• High protein yoghurt with fruit and a sprinkle of granola/muesli

• Soups with blended beans, lentils, or cottage cheese

• Protein shakes – made with powder or pre-made options e.g. Rokeby

• Protein puddings e.g. Wicked Sister, Paul’s Protein, Rokeby

• Overnight oats made with protein yoghurt or protein powder

• Mased boiled eggs, cottage cheese or turkey slices on rice cakes

Keep Convenient Options on Hand

Convenience matters especially on low-appetite days.

Helpful staples:

• Boiled eggs

• Tuna or salmon tins

• Protein yoghurts e.g. Yopro, Chobani Fit, Paul’s protein

• Edamame beans

• Rotisserie chicken

• Portioned cheeses e.g. Bega string cheese, Babybel

• Roasted chickpeas

Easy High-Protein Meal Ideas

Breakfast

• Greek yoghurt bowl with berries, soaked chia seeds, and nuts

• Eggs on wholegrain toast

• Protein oats made with high protein yoghurt

• Smoothie with protein powder, fruit, and yoghurt

Lunch

• Chicken or tofu rice bowl  

• Tuna salad wholegrain wrap

• Lentil soup with wholegrain toast

• Cottage cheese on toast with tomato and avocado

Dinner

• Salmon with vegetables and rice

• Stir-fry with tofu or lean beef strips

• Pasta with added lentils or chicken

• Burrito bowls with beans and extra lean beef mince

Protein Rich Snack Ideas

• Greek yoghurt

• Boiled eggs

• Edamame

• Protein smoothies

• Roasted chickpeas

• Cottage cheese and crackers

• Rotisserie chicken on rice cakes with low fat mayo

• Protein bars or protein muesli bars e.g. Carman’s

• Tuna and crackers

GLP-1 medications can be a helpful tool for weight management and metabolic health, but nutrition still matters.

Focusing on adequate protein intake can help support:

• Muscle preservation

• Energy levels

• Fullness

• Recovery

• Long-term health outcomes

Small, consistent changes are often more sustainable than aiming for perfection. Prioritising protein regularly throughout the day can make a meaningful difference in how you feel while using a GLP-1 medication.

If you need more personalised advice including a protein goal, meal plan or assistance transitioning off a GLP-1 once you’ve achieved your goal, book with one of our weight loss Dietitians here.