How Mounjaro Helps With Appetite Control | What the Science Supports

How Mounjaro Helps With Appetite Control

Losing weight isn’t always easy, and weight-loss injections like Mounjaro (the brand name of tirzepatide) are becoming more popular as people look for different methods to help them on their journey. 

Tirzepatide is taken once a week as a self-injection and was first developed to help treat type 2 diabetes. Today, it’s used as a weight loss treatment for adults managing obesity or related health conditions, and helps them control their appetite. 

But how does Mounjaro actually work? It’s something a lot of people and prospective patients want to know more about, so here we’ll take a look at how this GLP-1 medication works to control appetite – and what the science tells us so far. 

How does Mounjaro help with appetite control?

In short, Mounjaro reduces people’s appetite, making them feel fuller for longer. This can mean they eat less frequently, not snacking between meals as often, opting for smaller portions when it is mealtime. Over time, as they consume fewer calories, this can help them achieve their weight-loss goals. 

The way people react to Mounjaro can differ, however. For some people, they may quickly lose interest in food altogether, while other people might still feel like they want to snack – particularly if they have a history of overeating due to emotional triggers. 

Taking Mounjaro doesn’t mean that someone will necessarily change their eating habits overnight. It’s a good idea to consider not only how often you eat, and your portion sizes, but what you eat. A balanced diet with plenty of fruit, vegetables, protein and non-refined carbohydrates helps you feel fuller, gives you more energy and can even help boost your mood. 

What is the tirzepatide mechanism of action?

Tirzepatide is a dual agonist, activating GLP-1 and GIP receptors. These are both hormones that the gut produces after we eat. Because blood sugar rises when we eat, these hormones tell the pancreas to release insulin, which helps regulate it. Some people also explore supportive options like Blood Sugar Supplements to help maintain balanced glucose levels alongside diet, lifestyle changes, or prescribed treatments.

GLP-1 controls hunger by slowing digestion, in turn reducing appetite. GIP’s impact isn’t as strong, but it supports GLP-1, including by changing how some fat in the body is stored. In tirzepatide, the presence of GIP-receptor agonists can help reduce some of the side effects of GLP-1, like nausea, too. 

There’s also some evidence that GIP may be able to help boost the metabolism. This is the process of converting food into energy, and people with faster metabolisms burn more calories while resting, making weight loss easier.

By mimicking these hormones, Mounjaro also triggers receptors in the brain that make people think they’re full, suppressing their appetite and reducing food noise – those persistent unwanted thoughts about food that some people have. Together with slowing the digestive system’s gastric emptying, people on Mounjaro often end up eating less overall.  

Why do some people find it difficult to control their appetite?

Some people find it more difficult than others to control their appetite. It can be down to the levels of certain hormones, like ghrelin and leptin, which increase and suppress appetite respectively, along with certain other health conditions or medications. 

Overeating can sometimes have psychological causes, with some people opting for bigger portions or more unhealthy snacks when they’re upset, anxious, depressed, bored or stressed. Often called emotional eating, it can override the signals from the brain that someone is full, meaning they eat more than their body needs.

Do Mounjaro and Wegovy work in the same way?

Mounjaro and Wegovy are both weight-loss medicines, but they aren’t the same. They have different active ingredients. Mounjaro contains tirzepatide, whereas Wegovy contains semaglutide. This means that while Mounjaro activates both GLP-1 and GIP receptors, Wegovy only activates the former, making it a single receptor agonist rather than a double.

Looking at clinical trials, people often seem to get similar results regardless of whether they use Mounjaro or Wegovy. However, there is some data indicating that Mounjaro users may see a bigger difference at higher doses. But both are effective when used alongside sensible lifestyle changes, and the right medication can differ from person to person. 

What else can people do alongside taking Mounjaro?

Taking Mounjaro alone may help, but for the best results, it’s important to implement some lifestyle changes alongside its usage. As mentioned, a healthy, balanced diet is important, whatever medication you’re taking. Treats don’t need to be cut out altogether, but they need to be enjoyed responsibly, alongside a regular exercise routine and sleep pattern. Setting sensible, achievable short-term goals, perhaps keeping track of progress in a diary, can help with staying motivated too. 

For people who find emotional eating to be a recurring issue and are concerned that it may affect their weight loss journey with Mounjaro, they may decide to speak to their doctor or a qualified therapist. 

If you’re curious about how Mounjaro could fit into your lifestyle, our clinical team at The Virtual Slimming Clinic can talk things through with you and create a plan that’s tailored to your needs. You could begin by starting an assessment with us today. 

Frequently Asked Questions

How long does Mounjaro take to reduce appetite?

The effects of Mounjaro on appetite tend to become noticeable within a couple of days of the first injection. However, it can take a few weeks for the full effects to be felt, and some people notice the appetite suppressant wearing off in the lead-up to the next injection in the first few weeks. This is normal and happens because the level of medication in the body dips slightly.

What should I eat on tirzepatide?

It’s best to aim for a healthy, balanced diet on tirzepatide with plenty of protein, fibre and non-refined carbohydrates. Similarly, it’s important to stay properly hydrated. 

What are the side effects of Mounjaro?

Among the most common Mounjaro side effects are nausea, vomiting, diarrhoea, constipation, bloating and indigestion. Some people experience low blood pressure, mild hair loss, dizziness and tiredness, but they should come and go within a few weeks. If you’re concerned at all, it’s best to speak to a doctor. 

How long should I take a GLP-1 medication for appetite control?

Because GLP-1 drugs like Mounjaro are prescribed for people with obesity and related chronic health conditions, they’re intended for long-term or indefinite use. If you stop using them without a plan in place, you may gradually put weight back on. This isn’t the be all and end all, with many successfully transitioning to a healthier lifestyle without the drugs. If you’d like to stop using Mounjaro, speak to your clinician and they may be able to gradually reduce your dose.

By Jenny Jones.