Mounjaro Nutrition:
Your UK Guide to Eating for Results

As an independent, patient-first platform, our mission at Monj is to help you navigate our Mounjaro price comparison to find the best value across our 65+ indexed pharmacies—with absolutely no hidden fees. But your weight loss journey doesn’t end at checkout.

Understanding exactly what Mounjaro is and how it works is vital. Tirzepatide fundamentally changes how your body interacts with food by slowing gastric emptying and silencing “food noise.” Because your appetite will naturally decrease, what you choose to eat becomes your most powerful tool to preserve muscle mass, minimise side effects, and unlock the broader health benefits of Mounjaro and Wegovy.

1 Safeguard Your Muscle

Rapid weight loss often strips away lean muscle alongside body fat. Prioritising protein protects your metabolism, ensuring the weight you lose is fat, not muscle.

• Best sources: Chicken, turkey, salmon, eggs, tofu, lentils, and Greek yoghurt.
• Quick idea: Scrambled eggs and smoked salmon on seeded toast.

2 Master Low-GI Carbs

Avoid the energy crash. Low-Glycaemic Index (GI) carbohydrates break down slowly, working alongside your medication to keep your blood sugar perfectly steady.

• Best sources: Porridge oats, quinoa, brown rice, and non-starchy veg (courgettes, cauliflower).
• Quick idea: A warming bowl of porridge topped with flaxseeds and fresh berries.

3 The Power of Dietary Fibre

Because GLP-1 medications slow digestion, constipation is a common side effect. High-fibre foods are your ultimate defence to maintain optimal gut motility.

• Best sources: Leafy greens (spinach, kale), raspberries, apples, beans, and whole grains.
• Quick idea: A wholegrain wrap packed with hummus, spinach, and roasted peppers.

4 Embrace Essential Fats

Dietary fats do not make you gain weight. In fact, healthy fats are strictly necessary for brain function, hormone balance, and the absorption of essential vitamins.

• Best sources: Avocados, almonds, chia seeds, extra virgin olive oil, and sardines.
• Quick idea: Wholegrain toast with smashed avocado and a squeeze of lime.

5 Hydration is Non-Negotiable

Proper hydration aids kidney function and flushes toxins as you lose weight. It can also help mitigate nausea—one of the most common early side effects.

• The target: Aim for 2 litres (6–8 glasses) of water daily.
• Top tip: Infuse sparkling water with lemon or cucumber if plain water feels boring.

6 Navigating Processed Foods

Ultra-processed foods and refined sugars don’t just hinder weight loss—they are notorious for triggering gastrointestinal discomfort while taking your injections.

• What to avoid: Sugary drinks, biscuits, white bread, and greasy takeaways.
• Smart swap: Craving sweets? Have a handful of almonds with a square of dark chocolate (85%+).