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Mounjaro is a modern medicine for the treatment of type 2 diabetes, which simultaneously supports weight loss. The preparation contains thirzepatide, a substance that influences regulation of glucose levels in the blood, and appetite control. Mounjaro influences appetite and metabolic processes, helping the body to gradually get used to new eating habits.
The most commonly reported effects of the drug include better control of hunger, stabilisation of energy levels i weight loss.
Effects of using Mounjaro after one month - what can be noticed?
In the first few weeks of use, there are changes in both the sensation of hunger, as well as in metabolic processes. Eating makes you feel full quicker and the need to snack decreases.
The body begins to regulate better glucose levels, which promotes stable energy and reduces sudden attacks of hunger.
In the first month, portion control becomes easier and the the feeling of hunger appears less frequently and more predictable.
Can you see the effects of weight loss after a month?
After about four weeks, visual changes may be visible, although they are usually subtle. Clothes may be looser, especially in the abdominal area.
Weight loss is usually around 1-2 kg, with larger changes occurring over the following weeks.

Side effects in the first month
Nausea, vomiting, diarrhoea or abdominal pain may occur. These symptoms are usually temporary and subside as the body adapts.
Why might the effects differ?
The rate of change is individual and depends on metabolism, lifestyle, baseline weight and the body's response to treatment.
Diet and physical activity are also of great importance.
What influences the rate of effect?
Regular meals, quality of diet, sleep and physical activity levels are key. The more structured the lifestyle, the better the results of treatment.
Summary
The first month of Mounjaro's use is mainly about changes in appetite i eating habits. Weight loss may occur but is usually not yet the main effect. The therapy works gradually, so consider the first month as the beginning of the change process.
Want to know more about Mounjaro therapies in Wellclinic? Consult with our medical staff, who tailor the therapy to your needs.
FAQ - Mounjaro effects after one month
Do you see results after a month?
Yes, but these are mainly subtle changes in appetite.
How much weight can you lose?
Usually from 0 to a few kilos.
Why does appetite change first?
Because the drug acts on the mechanisms of hunger and satiety.
Does a lack of weight loss mean a lack of action?
No - metabolic changes can occur earlier.
Are the effects sustainable?
They depend on continued lifestyle and therapy.
Do you need to change your diet?
No, but healthy habits improve results.
Is physical activity necessary?
It is not necessary, but it helps a lot.
Why are the effects different?
Every body reacts differently.
Sources:
FDA (U.S. Food and Drug Administration) https://www.fda.gov/
EMA (European Medicines Agency)
https://www.ema.europa.eu/
https://www.ema.europa.eu/en/medicines/human/EPAR/mounjaro
Mounjaro for Weight Loss
https://www.healthline.com/health/drugs/mounjaro-for-weight-loss
Katarzyna Pawłowska
04.05.2026
+48 123 456 789