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Dietary advice for people with type 2 diabetes using tirzepatide (Mounjaro)

Patient information A-Z

How does it work?

Tirzepatide raises hormone levels that regulate insulin production and slow digestion, helping you feel full sooner and reducing appetite.

Importance of diet and exercise

As with all treatments for diabetes, it is important to eat a healthy, balanced diet. Make sure that you include plenty of protein in your diet, and exercise regularly, including muscle strengthening exercises, to avoid losing muscle mass whilst taking this medicine.

Possible weight loss

You may experience weight loss after starting on this medication. Losing 5-10% of your body weight can noticeably improve your blood glucose levels. You may follow the plate model below to help with weight loss:

Pie chart of healthy portions size of food for weight loss. half of plate: 1/2 vegetables/salad, top right: 1/4 protein and bottom left: 1/4 carbohydrates

A healthy dinner plate is made up of these types of foods:

  • Half the plate (50%) should have vegetables, salad or fruit.
  • One-quarter of the plate (25%) should have protein, such as meat, fish, eggs, beans or lentils.
  • One-quarter (25%) of your plate with wholegrain carbs like sweet potatoes, brown rice, brown pasta, or quinoa.

Importance of protein  

Protein supports weight loss by promoting fullness, preserving muscle, and raising metabolism. If your appetite is low, make protein a priority at each meal. Try to choose from whole food sources and avoid processed meat such as bacon and sausages as they are high in salt and saturated fat which are not good for your cardiovascular health. Animal - based foods like pork, chicken, duck, beef, fish, eggs and dairy products, are high in protein, as are plant-based foods like beans, pulses, tofu and Quorn®. Please talk to your dietitian if you would like to know what your protein target per day is.

Snacking

Snacking in general can make it harder to manage a healthy weight which is crucial for managing your diabetes. If your appetite is reduced and you struggle to finish a full meal, go for a healthier option which contains protein and fibre. For example, 0% fat Greek yoghurt topped with fruits or a handful of nuts, boiled eggs, a glass of skimmed milk, low fat cheese, a handful of mixed nuts such as peanuts, walnuts or brazil nuts , cottage cheese, chicken breast slices, edamame / soya beans, carrot sticks and hummus.

Protein supplements 

Sufficient protein requirements may be met through dietary intake. Protein supplements such as shakes and cereal bars, might be a convenient way to increase protein intake, but they do not contain the added benefits of other foods such as fibre, vitamins and minerals. High protein labels do not always mean a product is healthier or has more protein than a normal food These products may contain additional sugars, fats, and additives. Certain items might possess less or equivalent protein content by weight compared to their standard versions. Always check the full nutrition label for ingredients. If you have concerns that you are not achieving your protein targets you can consider discussing this with your healthcare team.

Be physically active  

Being physically active during weight loss is important. Exercise burns calories, helps you lose more weight than diet alone, and prevents the loss of muscle and bone mass that can occur when you lose weight with diet only.

Aim for at least 150 minutes of moderate-intensity aerobic activity (like brisk walking or dancing) or 75 minutes of vigorous activity per week. Incorporate muscle-strengthening activities that work all major muscle groups on two or more days a week. Even small amounts of activity can add up and provide significant health benefits. Aim to be more active throughout the day.

Consideration of supplements  

If you are not able to eat a balanced diet, you might benefit from taking certain supplements e.g. A-Z multivitamins and minerals. Keeping a food diary could be useful to track your nutritional intake. There are apps that can be used if this is helpful. Your medical team can offer personalised advice on your individual requirements.

Eat Mindfully

Since you may experience appetite suppression, it is important to recognise when you are full and stop eating accordingly. You can use the hunger scale below to help determine if you are hungry or have eaten enough.

Illustration of a scale from 1 to 10, with 4 to 7 labelled as comfortable eating. More details under image
1 = ravenously hungry, anxious to eat. 2 = stomach is empty, ready for food. 3 = hungry but no urgent need for food. 4 = stomach starts growling, start to think about food. 5 = satisfied neither hungry nor full. 6 =starts to feel full has room for more food. 7 = comfortably full satisfied. 8 = just past feeling comfortably full. 9 = stuffed uncomfortable. 10 = painfully full, might feel sick.

Diet tips for managing side effects

The patient information leaflet that comes with your medication has a full list of possible side effects. You are unlikely to have all the side effects listed and may not get any of them. If you do experience any side effects, make a note of them and talk to your healthcare professionals. The following management tips for side-effects of this medication may or may not work for you. If your symptoms persist or are unmanageable, please speak to your GP. Keeping a food and symptom diary may help you to identify any problem with foods that may be worsening your symptoms.

Management tips
Possible side
effects
Consider Avoid
Nausea / vomiting Consider Small, frequent meals
with snacks in between, because having an empty stomach can make you feel worse.  
  
Eat slowly and give
your food time to settle by relaxing after meals in a sitting or slightly
reclined position, instead of lying down  
  
Keep well hydrated with
sugar free / low calorie drinks between meals, rather than with your food.  
   
Small amount of
plain, dry foods, such as toast, crackers or plain biscuits, may help to
settle your stomach  
  
Ginger tea or
peppermint tea may help to settle your stomach.  
  
If you vomit, try to
increase your fluid intake to replace lost fluids  
  
If you require
medication to help you cope with nausea and sickness, please ensure you take
this exactly as prescribed, usually about 30 minutes before eating.
Avoid Very sweet, spicy,
fatty or fried foods  
  
Large portions of
meals   
  
Strong smelling
foods
Diarrhoea Consider Drink at least 2
litres of fluid every day to avoid dehydration   
  
Have small frequent
meals and snacks rather than large meals.  
  
Choose soft, easily
digested foods, e.g. white fish, mashed potatoes, yoghurt etc.   
  
You might find it helpful
to keep a food diary if you think certain food triggers the diarrhoea  
  
If your diarrhoea
does not settle, speak to your doctor who may prescribe some antidiarrheal
medication
Avoid High fibre foods e.g.
wholegrain cereals, brown rice and pasta, beans, lentils and pulses  
  
Spicy, fried or very
fatty foods, like curries, chillies, cream, pastry, chips, alcohol, strong
tea or coffee, or pure fruit juice
Constipation Consider Aim for at least 2 litres
of fluid every day   
  
Aim for five portions
of fruits and vegetables/day.  
  
Try a maximum of
150ml of fruit juices that are high in sorbitol e.g. apples, apricots,
peaches, pears, plums and prunes.  
  
Eat 2-3 kiwis a day
(including the skin)  
  
Choose wholegrain
options e.g. All Bran, oat bran, brown rice, ryvita rye crispbread, seeded
bread   
  
Include beans and
pulses in your diet such as red kidney beans, lentils   
Add 1 tablespoon of
flaxseed/linseed to your diet e.g. soup, salad, cereals   
  
Increase physical
activity level  
  
If you are still
constipated after following the above suggestions, you may wish to consider
using laxatives e.g. Fybrogel, lactulose. Please consult your pharmacist.
Avoid Limit processed
foods, sweets, white bread, and other refined carbohydrates  
  
Straining, as this can contribute to other problems  
  
When you feel the
urge to have a bowel movement, go to the toilet and don't delay.    
  
Alcohol and
caffeinated beverages can increase the risk of dehydration, so limit your
intake.
Sulphur burps  
(a foul rotten egg
smell)
Consider Try green,
peppermint, and chamomile tea  
  
Have small frequent
meals and snacks rather than large meals
Avoid High-sulfur foods e.g. eggs and dairy products, cruciferous vegetables
e.g. brussels sprouts, broccoli, cabbage, cauliflower, and kale  
  
Pungent vegetables such as garlic, onions, and leeks  
  
Spicy and fatty food  
  
Beer, cider and wine  
  
Fizzy drinks
Reflux Consider Eat smaller amounts at regular intervals and avoid drinks with meals.  
  
Try not to miss
meals. 
  
Relax at mealtimes. 
  
  
Sit up when eating
and avoid sitting in a low chair with a tray on your lap.  
  
Sleep in a
semi-upright position or with the head of the bed raised a few inches to help
to prevent nighttime symptoms of reflux.  
  
  
Seek medical advice
if you want to consider taking medication.
Avoid Having large meals.  
  
Eating late at night and ideally eat your evening meal three to four
hours before going to bed  
  
Bending, lifting or lying down straight after meals  
  
Heavy exercise immediately after eating  
  
Eating on the go  
  
Alcohol  
  
Some people find the
following foods may make symptoms worse:  
Tea or coffee, fizzy)
drinks, citrus fruits and juices such as orange, grapefruit, lemon and lime,
tomatoes and tomato based foods such as pasta sauces and tomato juice, spicy
foods, garlic and foods containing garlic, rich/fried/fatty/greasy foods e.g.
pastry, creamy sauces, rich desserts, fried batter, chocolate, vinegar

If you have any queries please do not hesitate to contact the diabetes team via telephone on 01223 348124.

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