GLP-1 weight loss in Seoul, supervised by an internist

How GLP-1 weight loss in Seoul works at VEI Clinic

GLP-1 weight loss in Seoul uses medicines that mimic glucagon-like peptide-1, a hormone your gut releases after eating. These medicines act on appetite centers in the brain, slow how quickly the stomach empties and help the pancreas release insulin when blood sugar rises. In daily life, most people notice they feel full sooner, think about food less often and find smaller portions satisfying.

The main options are semaglutide (sold as Wegovy for weight management and Ozempic for type 2 diabetes) and tirzepatide (Mounjaro, and Zepbound in some countries), which acts on both GLP-1 and GIP receptors. All are injected once a week under the skin with a pen. They are long-term treatments, not a short course: studies show that many people regain weight after stopping unless eating and activity habits have changed alongside the medicine.

At VEI Clinic, these medicines are prescribed by Dr. HyunSung Park, a board-certified internal medicine specialist who has treated patients in Korea since 2010. The aim is not simply to start an injection but to understand why weight has been hard to manage and to treat it as a medical condition.

Who is eligible for GLP-1 treatment

International prescribing labels for weight-management GLP-1 medicines are generally based on BMI. In Korea, the approved criteria are similar to those used in the US and Europe, but Korean and Asian obesity guidelines also recognize that health risks begin at a lower BMI in Asian populations, so your doctor looks at the whole picture rather than a single number.

• BMI of 30 or higher (obesity under international labels)
• BMI of 27 or higher with at least one weight-related condition, such as high blood pressure, high cholesterol, prediabetes, type 2 diabetes or sleep apnea
• Korean guidelines define obesity from a BMI of 25, and abdominal obesity by waist size, which may be discussed when assessing risk
• Patients who want to lose a few kilograms for cosmetic reasons, with a normal BMI, are usually not suitable candidates

Who should not use GLP-1 medicines

GLP-1 medicines are not right for everyone. Dr. Park reviews your history carefully and may recommend a different approach if any of the following apply.

• Personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2 (MEN2)
• Pregnancy, trying to conceive, or breastfeeding
• History of pancreatitis, or certain gallbladder problems that need assessment first
• Current or past eating disorder
• Insulin or sulfonylurea use, which needs dose adjustment to avoid low blood sugar
• Planned surgery with anesthesia, since delayed stomach emptying needs to be discussed with your surgical team

How we monitor you during treatment

Before starting, we usually check blood tests that matter for weight and metabolism, such as fasting glucose, HbA1c, lipids, liver and kidney function and thyroid function. A body composition test gives a baseline for fat mass and muscle mass, which matters because losing weight too fast without enough protein can mean losing muscle as well as fat.

Once you begin, the dose is raised step by step, usually every four weeks, only if you are tolerating it. Follow-up visits look at your weight trend, waist measurement, side effects, eating patterns and, where relevant, blood pressure and repeat labs. If progress stalls or side effects are troublesome, the plan is adjusted rather than pushed harder.

We also discuss what happens if you stop. Some patients move to a maintenance dose; others taper while strengthening habits. That decision is made with you, based on your health goals.

Red flags while on GLP-1 treatment

Mild nausea, fullness and constipation are common early on and usually settle. Some symptoms need urgent attention. Call 119 or go to an emergency room if you have severe abdominal pain that spreads to your back, with or without vomiting, as this can signal pancreatitis. Seek prompt care for pain in the upper right abdomen with fever or yellowing of the skin, persistent vomiting that stops you keeping fluids down, signs of dehydration such as very little urine, a lump or swelling in the neck, or symptoms of an allergic reaction such as facial swelling or difficulty breathing.