Weight Loss Injections: What Foods to Eat and Avoid

What to eat on Mounjaro

Your journey on Mounjaro can completely change the way food feels.

Many find they feel fuller after just a few mouthfuls and lose interest in foods they had previously enjoyed. Some struggle to eat enough throughout the day and experience side effects such as nausea, vomiting and constipation, which can make eating feel difficult.

Mounjaro can reduce your appetite which helps you eat less, but what you eat still matters.
Eating foods that are nutrient-dense can help you:

• Lose weight more effectively

• Maintain muscle mass

• Reduce the likelihood of side effects

• Improve your energy levels

• Build sustainable habits for long-term weight management.

Your diet whilst on Mounjaro is not about restriction - It’s about making every meal count when you’re naturally eating less.

How Does Mounjaro Change The Way Food Feels?

Mounjaro activates the two naturally occurring pathways that help regulate appetite and digestion.

As a result, you may notice:

• Feeling fuller faster than usual

• Reduced cravings between meals

• Less interest in high-calorie foods

• Food staying in your stomach for longer

• Difficulty finishing your regular portioned meals

For most, this is a welcome change, especially as it contributes to weight loss. However, for some, this can be strange or even frustrating when favourite foods start to become less appealing.

Because you’re likely eating less overall, it is important to prioritise foods that have lots of nutritional value - foods that are high in fibre, protein, vitamins and minerals.

Why Your Diet Matters When You Are Taking Mounjaro

Although Mounjaro can help you to eat less, your diet still plays a major role in your results.

A balanced diet can:

• Support healthy and sustainable weight loss

• Help preserve muscle during weight loss

• Improve energy levels

• Reduce hunger between meals

• Minimise digestive side effects

• Help prevent weight regain in the future

It is best to think of Mounjaro as a tool that makes healthy eating easier - not a replacement for it.

What Are The Best Foods To Eat On Mounjaro?

Lean Protein Sources

Protein should be a priority during meals - it helps preserve muscle mass during weight loss and keeps you feeling satisfied.

Good protein sources include:

• Chicken breast

• Turkey

• Fish

• Eggs

• Greek yoghurt

• Cottage cheese

• Tofu

• Lentils

• Chickpeas

• Beans

Try to start your meals by eating the protein component first.

Foods High In Fibre

Fibre supports digestion and helps prevent constipation.

Good options include:

• Oats

• Wholegraine bread

• Brown rice

• Quinoa

• Lentils

• Beans

• Fruits

• Vegetables

• Chia seeds

• Flaxseed

Fruit and Vegetables

Aim to include fruit and vegetables in your meals where possible.

They provide fibre, vitamins, minerals and antioxidants.

Good options include:

• Berries

• Pears

• Apples

• Leafy greens

• Broccoli

• Peppers

• Carrots

• Courgettes

Healthy Fats

Fats usually have a bad reputation. However, healthy fats can help you feel satisfied and support overall health.

Examples include:

• Avocado

• Olive oil

• Nuts

• Seeds

• Nut butters

• Oily fish

How Much Protein Should I Eat On Mounjaro?

A common concern amongst those who use Mounjaro is whether they are getting enough protein.
Eating too little protein can contribute to muscle loss if you are on a weight loss journey.

A general target for most should be at least 80-100g of protein per day.
More specifically, you should aim for 1.2-1.6g of protein per kilogram of body weight per day.

To make this easier:

• Aim to have protein at every meal

• Aim for 20-40g of protein per meal

• Prioritise protein before other foods on your plate if you get full quickly.

How Many Calories Should I Eat On Mounjaro?

There is no single calorie target that works for everyone. The ideal calorie intake depends on many factors such as:

• Age

• Height

• Weight

• Gender

• Activity levels

• Weight loss goals

You should not aim to eat as little calories as possible. Significantly reducing your food intake can lead to:

• Fatigue

• Dizziness

• Poor concentration

• Nutritional deficiencies

• Inadequate protein intake

If you feel that your appetite has reduced to the point where you feel like you cannot eat much, speak with your prescriber. A clinician can advise you on what the best steps to take are.

Which Foods Help WIth Mounjaro Side Effects?

If you feel nausea, opt for bland, easy to digest foods such as:

• Crackers

• Plain toast

• Rice

• Bananas

• Oatmeal

• Plain potatoes

Also try to:

• Eat smaller meals

• Avoid very fatty foods

• Eat slowly

• Avoid large portions

If you have constipation, increase:

• Your water intake

• Whole grains

• Beans and legumes

• Fruits and vegetables

If you have indigestion or reflux, try limiting:

• Fatty foods

• Spicy foods

• Large evening meals

• Acidic foods

Many find symptoms improve when they eat smaller portions more frequently.

Which Foods Should I Avoid Whilst On Mounjaro?

You won’t need to completely avoid any certain food whilst on Mounjaro but some foods may worsen your side effects or make weight loss difficult.

Highly Processed Foods

Food that is processed or ultra-processed can be high in calories, saturated fat, sugar and salt. Excessive intake can lead to weight gain. Examples include:

• Crisps

• Sweets

• Chocolate

• Cakes

• Pastries

• Fast food

Sugary Drinks

Calories in liquid form are easy to consume and do not make you feel full. The following are high in sugar:

• Fizzy drinks

• Sweetened coffees

• Fruits juices

• Energy drinks

Fatty and Fried Foods

Many find that these types of foods worsen nausea, bloating and indigestion:

• Chips

• Fried chicken

• Takeaways

Convenience Foods

Although convenient and prepared easily, convenience foods often contain high amounts of salt and saturated fats.They can contribute to water retention and poor diet quality. These include:

• Ready meals

• Processed meats

• Packet snacks

• Fast food

Can I Drink Alcohol On Mounjaro?

Yes, you can drink alcohol whilst on Mounjaro but moderation is key. Although there are no interactions between the two, alcohol can sometimes worsen the side effects of Mounjaro, including:

• Nausea

• Acid reflux

• Dehydration - alcohol can dehydrate the body and it is important to stay hydrated on Mounjaro as dehydration can cause headaches

• Dizziness

Alcoholic drinks contain empty calories, which can make it more difficult to maintain healthy habits.

For more information, read our article: Can you drink alcohol on Mounjaro

What If I’m Not Hungry On Mounjaro?

One of the most common feelings patients report is not feeling hungry whilst on Mounjaro.
You may forget to eat, feel full just after a few bites or struggling to finish your meal. In these circumstances:

1. Prioritise your protein - have your protein before other components of your meal

2. Choose nutrient-dense foods or low-nutrient snacks

3. Stay hydrated

4. Eat smaller meals more often if that helps

5. Have easy protein options available for when you feel hungry

The goal is not to simply eat less - but to eat well. Eating too little can affect your energy levels, muscle mass and overall nutrition.

How Do I Build Balanced Meals On Mounjaro?

A simple approach is:

• Half of your plate should be non-starchy vegetables such as broccoli, cabbage, kale etc or fruit

• A quarter of your place should contain lean protein

• The last quarter of your plate can be for your carbohydrates, such as potatoes, pasta, rice etc.

A few meal ideas:

• Grilled chicken with broccoli and brown rice

• Salmon with grilled vegetables and quinoa

• Greek yoghurt with berries and nuts

• Tofu stir-fry with vegetables and wholegrain noodles

Focus on being consistent, not perfect.

Summary:

The most ideal way to eat on Mounjaro is to focus on nutritious foods with smaller portions.

Prioritise:

• Protein

• Foods high in fibre

• Fruits and vegetables

• Whole grains

• Healthy fats

Limit:

• Fried foods

• Sugary drinks

• Excess alcohol

• Highly processed foods

It’s important to listen to your body when on a journey with Mounjaro. Your appetite may change dramatically but maintaining a balanced diet can help maximise weight loss, preserve muscle mass and reduce side effects during treatment.