About NextWeight

Better-informed decisions, supported by evidence

NextWeight Korea is a registered international patient facilitator that connects people considering obesity and metabolic care with appropriate medical institutions in Korea, and coordinates consultation, booking, visits, and follow-up.

We help international patients understand the differences between lifestyle intervention, anti-obesity medication, and bariatric and metabolic surgery, and we coordinate a consultation with an appropriate Korean medical institution so that decision can be made with a specialist.

Our role is not to promote one procedure, hospital, or country as the right choice for everyone. We help patients understand the available evidence, organise their medical information, prepare appropriate questions, and arrange a consultation with a qualified specialist. The medical decision belongs to the treating medical institution.

NextWeight Korea is operated by DYPHI Inc., a registered international patient facilitator in the Republic of Korea. Diagnosis, prescribing, assessment of treatment suitability, and medical procedures are the responsibility of licensed medical institutions and their clinicians.

Our background

DYPHI was founded by internal medicine specialists from Seoul National University and engineers with doctoral training from KAIST.

The company has worked with clinicians, researchers, hospitals, universities, and community health programmes across five continents. Much of this work has focused on healthy ageing, frailty, sarcopenia, physical function, rehabilitation, and community-based health assessment.

Through the development and international implementation of evidence-based health technologies, we have learned that good healthcare depends on more than access to advanced medical procedures.

Patients also need:

  • reliable information before making a decision;
  • a clear understanding of expected benefits and limitations;
  • transparent communication about risks and costs;
  • appropriate clinical assessment;
  • continuity between treatment and recovery; and
  • follow-up after returning home.

This experience now informs our work in helping international patients understand specialised medical services available in Korea.

Why NextWeight was created

Obesity is a chronic and complex medical condition.

However, people looking for treatment online are often presented with fragmented information, promotional claims, dramatic before-and-after images, or simplified comparisons between medication and surgery.

Important questions may remain unanswered:

  • Is treatment medically appropriate for my situation?
  • How do medication and surgery differ in effectiveness and durability?
  • What happens when medication is discontinued?
  • Which operation may be considered, and why?
  • What risks should be discussed before travelling?
  • What is included in the estimated cost?
  • Who will provide nutritional and metabolic follow-up?
  • How will complications be managed after I return home?

NextWeight was created to help patients address these questions before they make a financial, medical, or travel commitment.

What we do

Evidence interpretation

We explain what published studies, clinical guidelines, registries, and systematic reviews show—and what they do not show.

Population-level findings can help patients understand treatment options, but they cannot predict an individual outcome. Personal suitability must be assessed by a qualified medical professional.

Medical information preparation

We help patients organise their relevant information into a structured summary that may include:

  • current height, weight, and body mass index;
  • previous weight-management attempts;
  • current and previous anti-obesity medications;
  • obesity-related medical conditions;
  • previous operations;
  • current medications;
  • laboratory and imaging results; and
  • questions for the treating specialist.

A well-prepared case allows clinicians to conduct a more meaningful preliminary review.

Specialist and hospital review coordination

Where appropriate, we may help coordinate a preliminary review with a Korean specialist or hospital whose clinical scope is relevant to the patient's situation.

Cases are considered according to clinical suitability, the required specialty, available services, and follow-up needs—not simply according to advertising priority.

Treatment journey planning

For patients considering treatment in Korea, we help clarify the expected sequence of care:

  1. 1

    Medical information review

  2. 2

    Appropriate specialist or hospital identification

  3. 3

    Preoperative assessment

  4. 4

    In-person specialist consultation

  5. 5

    Shared treatment decision

  6. 6

    Treatment and early recovery

  7. 7

    Nutritional and metabolic follow-up

  8. 8

    Continued monitoring after returning home

Treatment abroad should be understood as a connected care pathway, not as a single procedure or hospital appointment.

Our principles

Evidence before marketing

We prioritise published evidence, clinical context, and qualified interpretation over promotional claims.

We do not present individual success stories as proof that the same result will occur for another patient.

Clinical suitability before booking

A request for treatment does not mean that a procedure is appropriate.

Any final decision regarding medication, surgery, anaesthesia, hospital admission, or treatment eligibility must be made by licensed healthcare professionals after an appropriate assessment.

Transparent roles

NextWeight is not a hospital, clinic, or medical practice.

We do not diagnose patients, prescribe medication, perform procedures, provide emergency care, or independently decide whether a patient is eligible for treatment.

Clearer information about costs

Treatment costs may vary according to the procedure, hospital, surgeon, length of admission, required investigations, medical complexity, and postoperative care.

We aim to distinguish clinical costs from optional coordination or travel-related services wherever possible.

A final medical quotation should follow an appropriate case review rather than precede it.

Continuity after treatment

Bariatric and metabolic surgery is not completed when the patient leaves the operating room.

Long-term care may include:

  • nutritional monitoring;
  • vitamin and mineral supplementation;
  • metabolic laboratory testing;
  • medication review;
  • psychological or behavioural support;
  • physical activity planning; and
  • communication with healthcare professionals in the patient's home country.

Before travelling, patients should understand who will provide each part of this follow-up.

Respect for patient information

Medical and personal information should be collected only when relevant to the requested service.

Information is shared with healthcare providers only for an appropriate review and with the patient's knowledge or consent, in accordance with the applicable privacy policy.

Selecting healthcare providers

We do not believe that the most heavily advertised hospital is necessarily the most appropriate hospital for every patient.

When helping to identify a potential provider, relevant considerations may include:

  • specialist qualifications and clinical focus;
  • experience with the proposed procedure;
  • multidisciplinary obesity and metabolic care;
  • anaesthesia and inpatient safety systems;
  • access to diagnostic and emergency services;
  • nutritional and metabolic follow-up;
  • communication with international patients;
  • provision of English-language medical records;
  • postoperative support; and
  • arrangements for follow-up after the patient returns home.

The final choice of provider and treatment remains the patient's decision following consultation with licensed clinicians.

Our continuing commitment

DYPHI began by developing evidence-based digital health technology with clinicians and researchers.

As we expand our work to international healthcare information and coordination, we will continue to apply the same approach:

  • define the clinical question clearly;
  • distinguish evidence from marketing;
  • acknowledge uncertainty;
  • avoid promising individual outcomes;
  • support informed consultation; and
  • consider what happens before, during, and after treatment.

Korea offers highly specialised medical expertise and efficient healthcare services. These strengths should be introduced to international patients through clinical value, transparency, and patient safety—not through exaggerated claims or opaque brokerage.

A good healthcare service does not end when a patient is referred to a hospital.

It should help the patient understand the decision, prepare for professional consultation, navigate the treatment process, and plan for appropriate follow-up after returning home.

That is the standard we aim to follow.

Important information

NextWeight and DYPHI are not healthcare providers.

The information provided on this website is intended for general educational and healthcare coordination purposes. It does not constitute medical advice, diagnosis, prescription, or treatment.

No information on this website guarantees that a particular treatment, hospital, or procedure will be suitable for an individual patient.

All treatment decisions must be made with licensed healthcare professionals after a review of the patient's medical history, current condition, examination findings, and relevant test results.

Patients experiencing urgent or worsening symptoms should contact a local healthcare provider or emergency medical service rather than rely on online communication.

Prepare for a structured, evidence-based review

If you are considering obesity or metabolic treatment, we can help you organise your information and prepare appropriate questions before you commit to treatment or travel.