Diet & Exercise Guide for People Starting GLP-1 Medication

Starting GLP-1 medication is a positive step towards improving your health, managing appetite and supporting weight loss. To get the best results — and maintain them long term — it’s important to combine your treatment with the right diet and exercise habits.

This guide explains exactly how to eat, move and build a routine that supports your GLP-1 journey.

Why Diet & Exercise Still Matter on GLP-1

GLP-1 treatments help by:

• Reducing appetite

• Slowing digestion

• Improving glucose control

However, medication alone isn’t enough to protect your metabolism or maintain muscle. A balanced diet and regular movement help you:

• Preserve lean muscle

• Boost energy

• Reduce side effects

• Improve long-term weight maintenance

What to Eat on GLP-1 Medication

1. Prioritise Protein

Appetite often reduces significantly, making it easy to undereat. Aim for 25–40g of protein per meal.

Good options include:

• Eggs, chicken, turkey

• Fish and seafood

• Beans, lentils, tofu

• Greek yogurt or cottage cheese

• Protein shakes

Tip: Start your meal with protein to prevent muscle loss.

2. Choose Lighter, Low-Fat Meals Early On

Because GLP-1s slow digestion, heavy or greasy meals can worsen nausea.

Limit in the first 4–8 weeks:

• Fried foods

• Creamy sauces

• High-fat meats

• Heavy desserts

Opt for:

• Grilled, baked or air-fried meals

• Lean meats

• Clear broths and lighter dishes

3. Eat Small, Balanced Portions

To avoid discomfort:

• Eat slowly

• Stop at the first sign of fullness

• Choose smaller meals more frequently

A balanced plate:

• ½ vegetables

• ¼ lean protein

• ¼ whole grains or starchy carbs

4. Stay Hydrated

Dehydration can increase nausea and fatigue. Aim for 1.5–2 litres of water daily.

5. Reduce Alcohol

Alcohol can hit harder and may worsen side effects while adjusting to the medication. Most patients benefit from reducing intake for 4–6 weeks.

Exercise While on GLP-1: What Works Best

Exercise is crucial for:

• Maintaining muscle

• Supporting metabolism

• Improving mood and energy

• Enhancing weight loss

1. Strength Training (2–3 times per week)

Focus on full-body movements:

• Squats or chair squats

• Lunges or step-ups

• Push-ups (wall, knee or full)

• Resistance band workouts

• Dumbbell exercises

Strength work is the most effective way to prevent muscle loss while losing weight.

2. Daily Movement (6,000–10,000 steps)

Walking supports digestion and burns calories without stressing the body.

Start with:

• A 10–15 minute walk after meals

• Daily step goals from 6,000 upwards

3. Optional Low-Impact Cardio

Once adjusted to treatment, add sessions like:

• Cycling

• Swimming

• Rowing

• Elliptical

• Light jogging

These improve heart health and fitness alongside strength training.

What to Expect in the First 8 Weeks

Weeks 1–2 Your appetite drops, and digestion slows. Choose lighter foods and focus on walking.

Weeks 3–6 Energy improves. Build consistency with strength training and hydration.

Weeks 6–8 Weight loss becomes more predictable. Increase exercise intensity if comfortable.

Common Mistakes to Avoid

• Skipping meals

• Eating too little protein

• Relying only on medication

• Doing only cardio

• Eating large, high-fat meals

• Ignoring water intake

A Simple Daily Routine for Success

Morning

• Protein-rich breakfast

• Glass of water

• Light walk or mobility work

Afternoon

• Balanced lunch

• 10–15 minute walk

Evening

• Strength training (2–3 days per week)

• Lighter meal

• Hydration check

Anytime: Track steps and protein.

Final Message

GLP-1 medication is a powerful tool, but long-lasting results come from building solid habits. By focusing on balanced nutrition, regular movement and muscle support, you can improve your health, feel more energised and maintain your progress for years to come.