Nutrition Support While Using GLP-1 Weight-Loss Medication

More and more people are using GLP-1-based weight-loss medications prescribed by their doctor, such as those containing semaglutide, tirzepatide or liraglutide. These medicines reduce appetite and slow stomach emptying, which changes how much, how often and what you feel like eating. Good nutrition remains essential during this time. As a specialist dietitian, I help you with the food side of the process, online in English or in person in Istanbul, while your doctor prescribes and monitors the medication.

What My Role Is, and What It Is Not

All decisions about starting, adjusting or stopping the medication, and about doses and side effects, belong to your doctor. I do not give medication advice. My role is to help you:

• eat enough protein to help protect muscle mass while you lose weight;
• drink enough fluids and get enough fibre, vitamins and minerals despite a smaller appetite;
• plan meals that may ease common digestive complaints such as nausea, fullness or constipation;
• build eating habits you can keep for the long term, including after the medication.

Eating Well with a Smaller Appetite

When you feel full quickly, every meal counts. We plan smaller, balanced meals with a protein source at each one, such as eggs, yoghurt, cheese, fish, chicken, legumes or tofu, along with vegetables, fruit and whole grains. Eating slowly and stopping when you feel comfortably full often helps. Very fatty, fried or large meals may feel heavier while you are on this type of medication, so we look at lighter cooking methods and portion sizes that suit you.

Protein and Muscle Mass

When weight comes off, some of it can be muscle. Enough protein spread across the day, together with physical activity approved by your doctor, especially strength exercises, helps protect muscle. Your protein target is set according to your body, your health and any medical conditions, such as kidney disease, that your doctor has told you about.

Hydration, Fibre and Digestion

A smaller appetite often means drinking less as well, and low fluid intake can make constipation and tiredness worse. We plan regular drinks through the day and increase fibre gradually from vegetables, fruit, legumes and whole grains. If you have nausea, small meals, plain foods and avoiding lying down straight after eating can help. If you have severe or persistent vomiting, severe abdominal pain or signs of dehydration, contact your doctor promptly.

Building Habits for the Long Term

The medication is one part of a wider plan. Regular meals, balanced plates, mindful eating, sleep and activity are the habits that matter when the dose changes or the treatment ends, and they are what we work on together from the start. Results vary from person to person.

How Sessions Work

Sessions are available online, in English, for clients in Dubai, Abu Dhabi, Doha and elsewhere, or in person in Istanbul. In the first session we review your health history, the treatment plan your doctor has given you, recent blood tests, your eating habits and goals. Your plan is then prepared and updated at follow-up sessions, with WhatsApp support in between. You can also read about weight loss support.

Frequently Asked Questions

Can you prescribe or recommend a weight-loss injection?

No. I am a dietitian, not a medical doctor. Weight-loss medications are prescribed and monitored by your doctor; I support the nutrition side only.

Do I still need a diet plan if my appetite is low?

Yes. With a smaller appetite it is easier to miss protein, fluids, fibre and micronutrients. A plan helps you make the most of what you eat.

What if I am planning a pregnancy?

Talk to your doctor as early as possible, as these medications are generally not used during pregnancy. For the nutrition side, see preconception nutrition.

What happens when I stop the medication?

Your doctor decides when and how treatment ends. Appetite may increase afterwards, so we plan meals and habits in advance to help you keep the progress you have made.

To book a session, send a message on WhatsApp or use the contact page. The information on this page is general and does not replace your doctor's advice.