Before Starting Wegovy or Mounjaro: Side Effects, Costs, and 3 Body Types They May Not Suit
【Important】This article is intended to provide medical information and does not provide medical advice, diagnosis, or treatment. Anyone considering treatment with GLP-1 medications should be examined and consult with a specialist at a medical institution. Making medical decisions based on the information in this article is not recommended.
What Are the Side Effects, Costs, and 3 Body Types It Is Not Suitable For?
💉 Before focusing on the effects, check your body type
🎯 How “that injection” used by celebrities works
While visiting Korean beauty clinics, one topic you hear about frequently these days is Wegovy and Mounjaro.
When hearing from people who actually use them, some say, “I lost more weight than I expected,” while others say, “It didn’t suit me, so I stopped right away.”
Wegovy and Mounjaro are GLP-1 (glucagon-like peptide-1) analogs originally developed as diabetes medications.
GLP-1 is a hormone that helps the pancreas secrete insulin when you eat and sends fullness signals to the brain. Wegovy works by suppressing appetite, while Mounjaro also acts on GIP (gastric inhibitory peptide) to help promote metabolism.
The reported weight-loss effects are an average of 14.9% with Wegovy and up to 22.5% with Mounjaro. Looking at the numbers alone, it is certainly understandable why they attract so much attention.
There have also been reports of cases where using them actually worsens a person’s condition, depending on their body type.
within one year after stopping treatment
🎯 For these 3 types of people, doctors also consider prescribing carefully
Once you understand how it works, you can see whether it is suitable for you. If any of the following 3 conditions apply to you, we recommend consulting your doctor carefully before starting treatment.
⚠️ Type ①: People with low muscle mass and “hidden obesity”
When losing weight with medication, not only fat but also muscle mass may decrease.
If you start treatment with an already low amount of muscle mass, your basal metabolism may decline further, increasing the risk of developing a body type that is prone to rebound weight gain after stopping the medication.
⚠️ Type ②: People with reduced gastrointestinal motility
GLP-1 medications work by intentionally slowing the time it takes for the stomach to empty.
People who already have indigestion or gastroptosis may experience serious side effects such as vomiting, abdominal bloating, or a significant decrease in stomach motility.
⚠️ Type ③: People with a habitual strong craving for sweets
People who eat sweets or refined carbohydrates even when they are not hungry may have a brain reward circuit that is dependent on sugar.
Even if feelings of fullness are controlled, reward-seeking is driven by a separate circuit, so there are cases where the medication may be less effective (individual differences apply).
If any of these 3 types sound familiar, it is important to check your condition through counseling with a specialist before starting treatment.
🎯 Why rebound weight gain occurs after stopping the medication
Clinical data has confirmed a yo-yo phenomenon in which many patients who discontinue treatment regain approximately two-thirds of the weight they lost within one year.
There are two reasons. One is a decline in basal metabolism due to reduced muscle mass. The other is that appetite rapidly returns when the medication wears off.
Ultimately, the medication is merely “a support tool that temporarily suppresses appetite.” To maintain your weight after stopping, changing your eating habits at the same time is essential.
✅ Improving your diet to prevent sharp blood sugar spikes is the fundamental way to prevent yo-yo weight gain
Multigrain rice, which is rich in dietary fiber, slows the rise in blood sugar, and this may be associated with the brain’s satiety center (individual differences apply).
In addition, incorporating alternative sweeteners such as allulose and low-sugar desserts may make it easier to control cravings for sweets. Combining medication with dietary improvements can help maintain weight over the long term (individual differences apply).
🎯 What to confirm with your doctor before treatment, including cost, side effects, and a plan for after discontinuation
It is dangerous to rely solely on reviews on social media when making a decision. A doctor’s judgment based on your physical condition is necessary.
✅ What to confirm during your preliminary consultation
・Current muscle mass and body fat percentage (body composition test)
・Whether there are any problems with gastrointestinal motility
・Whether you have a tendency toward strong cravings for sweets (check eating behavior)
・Whether you have a maintenance plan after discontinuing treatment
・Expected side effects and how to deal with them
・Cost (if not covered by insurance, the monthly medication cost may be high)
Rather than “trying the injection first and thinking about it later,” understanding your condition before starting treatment will ultimately be the shortcut.
✨ Summary: 5 things to check before using the injection
□ I understand how GLP-1 medications work (slowing gastric emptying and signaling fullness to the brain)
□ I have checked whether I fall into any of these categories: “hidden obesity, reduced gastrointestinal function, or strong cravings for sweets”
□ I have scheduled a preliminary consultation, including a body composition test
□ I have discussed with my doctor the risk of yo-yo weight gain after discontinuation and how to combine treatment with dietary improvements
□ I have confirmed a long-term schedule that includes the cost, side effects, and plan for discontinuation
In closing
Wegovy and Mounjaro are certainly medications with noteworthy data. However, whether they are right for you cannot be determined by numbers alone.
Accurately understanding your physical condition before starting is ultimately the shortest route to achieving results without taking unnecessary detours.
At YEPPURIKO, we provide tips for making smarter choices based on the latest information about Korean beauty clinics and the real experiences of people who have actually visited them. Please check out our other articles from our profile as well.
💬 Please consult a doctor before treatment
If you are considering treatment with Wegovy or Mounjaro, be sure to receive counseling from a specialist. For more information, please check the reservation button on our profile.
Frequently Asked Questions
Q. Which should I choose, Wegovy or Mounjaro?
Which one is more suitable depends on your constitution and health condition. Since Mounjaro also acts on GIP, it offers an additional metabolism-boosting effect, but a doctor's judgment is necessary, including consideration of the risk of side effects.
Q. What should I combine with the medication to prevent the yo-yo effect?
Improving your diet to moderate rises in blood sugar is considered the fundamental approach. Using high-fiber multigrain rice and alternative sweeteners may make it easier to control your appetite even after stopping the medication (individual results may vary).
Q. Can people with a sensitive stomach and digestive system use it?
Because GLP-1 medications work by slowing gastric emptying, people with indigestion or gastric ptosis may experience serious side effects such as vomiting and abdominal bloating. Be sure to inform your doctor before treatment.
Q. If I have low muscle mass, is it better to build muscle first before starting?
In general, some people may consider improving their body composition before starting treatment. We recommend consulting a doctor about the specific order of treatment.
Q. Which clinic should I consult in Korea to receive Wegovy or Mounjaro?
There are several clinics that offer weight-loss injections. It is important to check during your consultation whether they can discuss body composition testing and a management plan after administration before choosing a clinic.
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