What if my weight loss stalls on Mounjaro?
- AJ Hill Aesthetics

- May 14
- 6 min read
Mounjaro (Tirzepatide) has been given the title of a life-changing drug, helping some people lose up to 20% of their body weight. But what if the scales have stopped moving for you?

Not seeing results with weight loss medications can be frustrating and discouraging. It may seem like the medication isn't effective. However, you're not alone, and there's often a reason why your weight loss has plateaued.
This article will explain why you may not be losing weight with Mounjaro, how elements like Mounjaro dosage and maintenance might influence this, and offer tips to help you overcome obstacles to achieve the results you desire.
Why Mounjaro may stop working
If you’re not losing weight on Mounjaro injections, it’s important to understand that the medication is a tool to aid weight loss – it is not a quick fix or silver bullet or magic wand. Effective weight loss needs more than just a jab of Mounjaro a week.
Mounjaro, like other GLP-1 weight loss medications, aids in weight loss by curbing your appetite and reducing food noise. However, to achieve results, lifestyle changes are necessary. This involves adding exercise to your daily routine, rethinking your connection with food and your body, and considering your dietary choices while on Mounjaro.
Although lifestyle is a frequent cause for stalled progress, other factors such as dosage, underlying health conditions, and plateaus might also be involved.
Be Patient – It Takes Time to Work
Weight loss with Mounjaro may take several weeks. In clinical trials, patients began losing weight after four weeks of use. By eight weeks, they had lost 6% of their body weight, and by 12 weeks, they experienced an 8% reduction.
If you've recently started using Mounjaro and haven't achieved your desired results yet, remain patient and stick to your treatment plan. Focus on non-scale victories, such as improved energy levels and better appetite control, to stay motivated.
Weight loss speed varies from person to person. Some may lose weight quickly, while others notice gradual changes over time. Avoid comparing your progress to others.
Is The Dose Right For You?
Lower doses might not curb your appetite sufficiently to achieve results. If you aren't experiencing significant weight loss on these doses, don't be concerned – it's entirely normal.
You'll usually begin Mounjaro at the lowest dose (2.5 mg), then increase to 5 mg after four weeks. This gradual method (titration) allows your body to adapt to the medication. It ensures your safety and maximizes the treatment's effectiveness.
As your dose increases, you'll observe the effects of Mounjaro more clearly. Achieving the highest dose you can tolerate will assist you in reaching your weight loss goal, as demonstrated in clinical trials. After 72 weeks, patients lost:
16% average body weight loss on a 5 mg dose
21.4% average body weight loss on a 10 mg dose
22.5% average body weight loss on a 15 mg dose

Are You Following Your Recommended Dosing?
Frequently missing doses or taking breaks from Mounjaro or dividing your Mounjaro dose into smaller doses than recommended by a clinician (known as ‘microdosing’) can reduce the effectiveness of the treatment. It is also unsafe and may increase the risk of serious side effects.
We advise you to adhere to the dosing schedule provided by your clinician. This ensures the treatment remains as effective as possible, tailored to your needs rather than a one hat fits all. You should inject the dose on the same day and at the same time each week. Setting a reminder on your phone can help you remember to do so.
Your Diet Might Be Slowing You Down...
Mounjaro aids in curbing your appetite. However, you won't shed pounds if you continue to consume more than your body requires. Concentrate on a balanced, nutrient-rich diet consisting of whole foods and pay attention to portion sizes.
Although reducing calorie intake aids in weight loss, don't fixate on the calorie deficit. Instead, prioritize obtaining optimal nutrition from your meals. Fostering a healthy relationship with food will support a healthy lifestyle.
If emotions lead you to crave comfort food, it can be overwhelming. The key is to change your perspective. Techniques like mindfulness, deep breathing, or yoga can help you manage challenging emotions such as stress, boredom, or sadness, which are common triggers for comfort eating.

Activity and Exercise Levels Play A Part Too
Leading a sedentary lifestyle can hinder your progress, so it's crucial to incorporate exercise when taking Mounjaro. Exercise aids in weight loss by burning fat and boosting metabolism. It also reduces stress, enhances wellbeing, and decreases the risk of serious health conditions.
If you're new to exercising, aim for 30 minutes of physical activity each day. Find simple ways to stay active, such as walking to the store instead of driving or taking the stairs instead of the elevator.
As your stamina improves, consider intensifying your routine by adding strength training. This helps build and maintain muscle mass, which further enhances fat burning.
If you're not ready or able to jog or run, try brisk walking for 10-20 minutes. This will improve circulation and contribute to the recommended 150 minutes of weekly exercise.
Hit a Weight Loss Plateau?
Weight loss plateaus happen when your body gets used to a routine, such as a new diet or exercise regimen. This adaptation can slow or even halt your progress. Although it can be frustrating, it's a common occurrence, and small adjustments can reignite your stalled progress.
Boosting your protein intake and adopting a balanced approach to carbohydrates can aid your progress. Increasing your exercise and managing stress can also help overcome the plateau.
However, if you're experiencing a Mounjaro plateau, it might indicate that your current dose is too low. Consult your prescriber, as adjusting your dose could help you get back on track.
We have several other articles related to plateaus and how to overcome them with some simple changes, tips & tricks (see related articles).
Other Health Conditions aka Co-Morbidities
For individuals with health conditions that affect metabolism or hormone levels, such as hypothyroidism or PCOS, losing weight can be more difficult. Additionally, certain medications, including antidepressants and corticosteroids, can influence your weight.
If you believe an underlying health issue might be obstructing your weight loss, consult a doctor. They can evaluate your situation and arrange tests to see if it's impacting your progress, and then guide you on the next steps.

GLP-1 Medications May Not Be Right For You
Though uncommon, there are instances where Mounjaro, Wegovy, Rybelsus etc. may not be suitable for you. We recommend that patients aim to lose at least 5% of their body weight within the first six months of treatment. If this goal isn't achieved, there should be a discussion as to whether using GLP-1 medications such as Mounjaro & Wegovy are beneficial for you.
If you feel the treatment isn't effective for you, other weight-loss medications might be considered. Popular alternatives include:
Rybelsus (semaglutide): This GLP-1 receptor agonist functions similarly to Wegovy but comes as an oral tablet (soon to be re-branded in the UK as the Wegovy Pill). In one study, patients experienced an average weight loss of 15% over 68 weeks.
Saxenda (liraglutide): Another GLP-1 receptor agonist, but with a different active ingredient than Mounjaro and Wegovy.
Orlistat (Alli, Xenical): Orlistat is available in tablet form and operates through a completely different mechanism than Mounjaro and GLP-1 injections. It is taken after each meal and reduces fat absorption from food by up to 33%.
Aim For Sustainable Weight Loss, Not Quick Fixes
Avoid focusing too much on the concept of rapid weight loss while using Mounjaro. Sustainable weight loss is gradual, so aim for a consistent reduction of 1-2 lbs per week.
Those who combine Mounjaro with a nutritious diet, lifestyle adjustments, and regular physical activity will achieve the best long-term outcomes. This is why we provide more than just medication; we offer personalized health advice to support you on your journey.
Remember, the scale isn't the only measure of success in a weight loss journey. Celebrate non-scale victories as well, such as increased energy, better-fitting clothes, and a healthier relationship with food.
Conclusion:
Mounjaro is a Tool, Not a Magic Solution: This medication aids in regulating appetite and metabolism, but it works best when paired with a healthy diet and regular exercise.
Finding the Right Dose is Crucial: Dosage effectiveness varies among individuals, and some may require a higher dose to see significant weight loss results.
Your Diet and Exercise Levels Could be Impacting Weight Loss: Focus on consuming nutrient-rich foods and limit processed foods, sugars, and unhealthy fats. Aim for 30 minutes of activity daily and incorporate small changes, like increased walking.
Medical Conditions Can Affect Your Weight Loss: If weight loss is slow despite your efforts, underlying health issues or medications might be influencing it. Consult your doctor to discuss any concerns.
Sustainable Weight Loss Requires Patience and Consistency: Anticipating quick weight loss can lead to frustration, but gradual progress over time is essential for long-term success.



