A weight loss doctor in Gangnam who looks deeper

Why choose an internist as your weight loss doctor in Gangnam

Gangnam has many clinics offering weight-loss injections. What makes a weight loss doctor in Gangnam worth seeing is whether they treat weight as a medical issue with possible causes and consequences, or simply as a product to sell. Excess weight is linked to blood pressure, cholesterol, fatty liver, sleep apnea and type 2 diabetes, and some of these conditions also make weight harder to lose.

Dr. HyunSung Park is a board-certified internal medicine specialist and gastroenterology subspecialist who has treated patients in Korea since 2010. He is ECFMG certified, a graduate of the State University of New York and a former clinical professor at Dongguk University Ilsan Hospital. That background means your weight plan is designed alongside your overall health, not separately from it.

What we check before treatment

Before recommending any medicine, we look for medical factors that can affect weight or change which treatment is safe. Tests are chosen for you, so not everyone needs every item below.

Testing also gives you a baseline. If you later start medicine or change your diet, repeating key tests shows whether blood sugar, cholesterol, liver health and body composition are actually improving, rather than relying on the scale alone.

• Thyroid function: an underactive thyroid can cause weight gain, tiredness and feeling cold
• Blood sugar, HbA1c and fasting insulin: to look for insulin resistance, prediabetes or diabetes
• Liver function and, where relevant, abdominal ultrasound: to assess fatty liver
• Cholesterol and triglycerides: to understand cardiovascular risk
• Kidney function: important for safe use of some medicines
• Body composition: fat mass, muscle mass and visceral fat estimate as a baseline
• Hormone tests when symptoms suggest a hormonal cause

Reviewing your current medicines

Several common medicines can contribute to weight gain or make weight loss slower. These include some antidepressants and antipsychotics, certain diabetes medicines such as insulin and sulfonylureas, steroids, some anti-seizure medicines and some older blood pressure medicines. We never stop a medicine on our own initiative, but we can discuss alternatives with you and, where appropriate, with your prescribing doctor.

A medicine review also matters for safety. GLP-1 medicines can interact with insulin and sulfonylureas, raising the risk of low blood sugar, and tirzepatide can make oral contraceptives less reliable during dose increases.

Sleep and mood are part of this conversation too. Poor sleep, untreated sleep apnea, chronic stress and low mood can all increase appetite and make weight harder to manage. If these seem relevant, we address them alongside diet and medicine, and refer you to another specialist when needed.

Treatment options we may discuss

Once the medical picture is clear, the plan is built around your goals and health. It often combines more than one approach.

We also consider practical realities: work hours, business travel, eating out, alcohol at work dinners and time zones. A plan you can follow consistently over months usually does better than an ambitious one you abandon after a few weeks.

• Practical nutrition and activity changes that fit an expat or busy work schedule
• GLP-1 medicines such as Wegovy or Mounjaro for people who meet medical criteria
• Treatment of underlying conditions such as thyroid disease, high blood pressure or fatty liver
• Body contouring devices such as ACCENT PRIME or ACCUCURV, or fat-dissolving injections, for stubborn local areas once overall weight is addressed
• Regular follow-up with body composition testing to track fat versus muscle

Who this approach suits, and its limits

This approach suits adults who want a medical explanation for weight changes, those with weight-related conditions, and people who have tried diets repeatedly without lasting results. It is also helpful if you want a doctor to oversee GLP-1 treatment rather than buying medicine with minimal supervision.

Some situations need a different specialist. Weight-loss surgery and endoscopic procedures are not offered here, but we can refer you to a hospital. Unexplained weight loss, rather than gain, needs prompt investigation. Seek urgent care or call 119 for chest pain, sudden shortness of breath, severe abdominal pain or fainting.