The short answer: what should you eat on Mounjaro or Wegovy?
Eat the same broad kind of balanced diet recommended for long-term weight management, but adjust the portion size and food texture to match your appetite and side effects. Mounjaro contains tirzepatide and Wegovy contains semaglutide. Both can reduce hunger and increase fullness, and both are intended to be used alongside a reduced-calorie eating pattern and increased physical activity where appropriate [1,3].
A useful plate structure is:
- protein first: chicken, fish, eggs, Greek yoghurt, tofu, beans, lentils, cottage cheese or lean meat;
- vegetables or fruit: fresh, frozen or cooked options are all useful;
- higher-fibre carbohydrates: oats, wholegrain bread, brown rice, potatoes with skin, wholewheat pasta, beans or lentils;
- small amounts of healthy fats: olive oil, rapeseed oil, avocado, nuts, seeds or oily fish;
- fluid: water, lower-sugar drinks or other drinks you tolerate well.
This structure is deliberately practical. When appetite is reduced, the risk is not only eating too much. Some people also eat too little protein, fibre or fluid, which can make tiredness, constipation, dizziness or loss of muscle more likely [5].
Best foods to eat on Mounjaro or Wegovy
Protein-rich foods
Protein helps make smaller meals more useful and supports muscle maintenance during weight loss. You do not need to turn every meal into a high-protein challenge, but it is sensible to include a protein source at breakfast, lunch and dinner if you can tolerate it [5].
- Eggs, Greek yoghurt, skyr, cottage cheese or milk
- Chicken, turkey, lean beef or lean mince
- Fish, including salmon, sardines, tuna, cod or prawns
- Tofu, tempeh, lentils, chickpeas, beans and edamame
Protein-fortified options can be useful occasionally, but they should not replace a varied diet unless your clinician or dietitian advises it.
Vegetables, fruit and higher-fibre carbohydrates
Fibre supports gut health and may help with constipation, which can happen while taking obesity medicines. Increase fibre gradually if your gut is sensitive, and drink enough fluid alongside it [5,6].
- Oats, wholegrain bread, wholewheat pasta, brown rice and quinoa
- Beans, lentils, chickpeas and split peas
- Potatoes or sweet potatoes, ideally with the skin where tolerated
- Berries, apples, pears, oranges, bananas and melon
- Cooked vegetables if raw salads feel too heavy or worsen bloating
Healthy fats in smaller portions
Fat is not “bad”, and very low-fat eating is not automatically better. The issue is usually portion size and tolerance. Large, greasy or creamy meals can sit heavily and worsen nausea, reflux or diarrhoea for some people. Choose smaller amounts of unsaturated fats more often, such as olive oil, rapeseed oil, avocado, nuts, seeds and oily fish [5,6].
Calcium-containing foods
If you are eating less overall, bone and general nutrition still matter. Include calcium-containing foods such as milk, yoghurt, cheese, calcium-set tofu or fortified plant milks, especially if your appetite has dropped and your diet has narrowed [5].
Meal ideas while taking Mounjaro or Wegovy
These are examples, not a fixed meal plan. Your portions may be smaller than before, especially during the first weeks or after a dose increase.
Breakfast ideas
- Greek yoghurt or skyr with berries and oats.
- Scrambled eggs with spinach and a slice of wholegrain toast.
- Porridge made with milk or fortified plant milk, topped with berries or banana.
- Cottage cheese on wholegrain toast with tomatoes.
- Tofu scramble with mushrooms and a small portion of potatoes.
Lunch ideas
- Chicken, tuna, tofu or egg salad with wholegrain bread or potatoes.
- Lentil soup with a small wholegrain roll.
- Rice bowl with salmon, tofu or chicken, vegetables and a light dressing.
- Bean chilli with a small portion of rice and yoghurt.
- Jacket potato with beans, tuna, cottage cheese or a lean protein topping.
Dinner ideas
- Baked fish with potatoes and cooked vegetables.
- Turkey or lentil bolognese with wholewheat pasta.
- Chicken, tofu or prawn stir-fry with rice and vegetables.
- Omelette with vegetables and a side salad if tolerated.
- Lean mince, bean or vegetable chilli with a modest portion of rice.
Snack ideas
- A boiled egg, yoghurt, cottage cheese or a small handful of nuts.
- Apple slices with peanut butter.
- Carrot, cucumber or pepper sticks with hummus.
- A small smoothie made with yoghurt, fruit and milk.
- Wholegrain crackers with tuna, cheese or hummus.
What to eat if nausea, reflux or a dose increase makes meals difficult
Nausea, vomiting, diarrhoea, constipation, reflux and stomach discomfort are recognised side effects with Mounjaro and Wegovy. They are often more noticeable when starting treatment or increasing dose, but they should still be taken seriously if they are persistent, severe or affecting your ability to eat or drink [1,3,5].
If meals feel difficult, try:
- three smaller meals rather than one large meal;
- eating slowly and chewing well;
- choosing plainer, lower-fat foods for a few days if rich meals worsen symptoms;
- putting protein first if you cannot finish a full plate;
- sipping fluids regularly, rather than drinking a large amount quickly with meals;
- avoiding lying down straight after eating if reflux is a problem.
Do not keep pushing through severe symptoms just because nausea can be common. If you are vomiting, cannot keep fluids down, feel faint, or are struggling to eat enough, contact your prescriber promptly.
Foods and drinks to limit or avoid if they trigger side effects
There are no universal “banned foods” for Mounjaro or Wegovy. The better question is which foods make your side effects worse. Many people find they tolerate simpler, smaller meals better than large, rich meals.
Common trigger options to limit or avoid include:
- fried foods, takeaway chips, battered foods and greasy meals;
- large portions of creamy pasta, pizza, burgers or rich desserts;
- very spicy foods if they worsen reflux or nausea;
- high-sugar drinks, sweets or large desserts if they make nausea or cravings worse;
- fizzy drinks if they worsen bloating, burping or reflux;
- alcohol, especially if it worsens nausea, reflux, sleep or blood-sugar control.
This is not about moralising food. It is about identifying patterns. If a food reliably makes symptoms worse, reduce it, change the portion size or choose it at a time when your stomach is more settled.
How many calories should you eat on Mounjaro?
There is no single calorie target that is right for everyone taking Mounjaro or Wegovy. Your needs depend on your height, weight, age, activity, medical history, dose stage and how much you are currently able to eat.
The NHS describes a general weight-loss approach where average daily calorie intake is reduced by about 600 calories, using 1,900 calories a day for many men and 1,400 calories a day for many women as broad examples [7]. That is population-level guidance, not a prescription for every person on GLP-1 or GIP/GLP-1 treatment.
The practical point is this: do not use a reduced appetite as a reason to crash diet. If you are regularly eating very little, missing protein, losing hair, feeling dizzy, feeling weak or finding your mood affected, speak to your prescriber, GP, pharmacist or a registered dietitian [5].
Can you eat takeaway while on Mounjaro or Wegovy?
Yes, but portion size and food choice matter. A takeaway does not have to mean a large, fried or very rich meal. Choose something that gives you protein, vegetables or salad, and a manageable carbohydrate portion.
Better-tolerated takeaway options often include:
- grilled chicken, fish or tofu with salad and rice or potatoes;
- a burrito bowl with beans, lean protein, vegetables and a modest amount of rice;
- sushi with edamame, miso soup or sashimi, depending on appetite;
- a jacket potato with beans, tuna, cottage cheese or chilli;
- a stir-fry or rice bowl with sauce on the side;
- soup with added protein and a small bread roll.
If you are ordering food because you are tired or busy, keep the decision simple: protein first, add vegetables or salad, keep fried extras small, and stop before you feel uncomfortably full.
Are there dietary restrictions with Mounjaro or Wegovy?
Mounjaro and Wegovy do not come with a single required diet or a fixed list of foods everyone must avoid. However, there are medicine-related situations where you need personalised advice.
Speak to your prescriber, GP or pharmacist if:
- you take insulin or a sulfonylurea for diabetes, because low blood sugar can be more likely and your medicine plan may need adjustment [1,3];
- you are pregnant, planning pregnancy or breastfeeding, as these medicines may not be appropriate and you need individual advice [1,3];
- you use oral contraception and take Mounjaro, because the UK product information advises additional barrier contraception or a non-oral method for four weeks after starting and four weeks after each dose increase for women with obesity or overweight [1,2];
- you have severe digestion problems, a history of pancreatitis, planned surgery with anaesthetic, or another medical condition that affects what you can safely eat [1,3,5].
When to contact your prescriber or seek urgent help
Contact your prescriber, GP, pharmacist or clinical team promptly if side effects are stopping you from eating or drinking normally, if vomiting or diarrhoea persists, if constipation becomes severe, or if you feel dizzy, faint or weak. Dehydration can become more likely when nausea, vomiting or diarrhoea occur [1,4,5].
Seek urgent medical help if you develop:
- severe, persistent pain in your stomach or abdomen, with or without vomiting, as this can be a warning sign of pancreatitis [1,3];
- symptoms of a severe allergic reaction, such as swelling of the face, lips, tongue or throat, difficulty breathing, wheezing, difficulty swallowing, fast heartbeat, dizziness or collapse [1,3];
- signs of severe dehydration, such as being unable to keep fluids down, confusion, very little urine, or feeling faint;
- sudden or worsening changes to your eyesight while using Wegovy [3].
Do not change your dose, stop treatment or restart treatment after a break without following the instructions from your prescriber or product information.
