Quick answer Medical weight loss is a physician-supervised programme that treats the metabolic and hormonal drivers of weight — not just calories and willpower. GLP-1 medications (such as semaglutide and tirzepatide) can produce substantial weight loss — around 15% and up to ~20–22% of body weight respectively in major trials. They are powerful but not magic: they are prescription medicines with side effects, work best alongside nutrition and lifestyle change, and weight tends to return if stopped without a plan. At My-Health, medical weight loss is built on diagnostics and physician oversight, delivered in Dubai — with medication used where appropriate, not by default.

Weight loss has been transformed in recent years — first by the science showing that body weight is largely regulated by biology, and then by a new generation of medications that work with that biology. But the headlines outrun the nuance. This guide explains what medical weight loss really involves, how the GLP-1 medications work and what the evidence shows, who they suit, the safety facts, and how a proper programme is structured in Dubai.

What is medical weight loss?

Medical weight loss is a structured, physician-supervised approach that starts by understanding why your body is storing fat — hormones, blood sugar, metabolic rate, body composition and inflammation — and then treats those drivers. It may combine nutrition, training, behavioural support, monitoring and, where appropriate, medication. The distinction from generic dieting is that it is personalised to your biology and medically managed, with measurable outcomes tracked over time.

Why weight is a metabolic problem, not a willpower problem

Decades of research show that body weight is defended by powerful biological systems — hormones that control hunger and fullness, insulin and blood-sugar dynamics, and a metabolism that adapts to resist loss. This is why willpower-based dieting so often fails: the body pushes back. Effective medical weight loss works with these systems rather than against them, which is also why the new medications have been such a step change.

GLP-1 medications: what they are and what the evidence shows

GLP-1 receptor agonists (such as semaglutide) and dual GLP-1/GIP agonists (such as tirzepatide) mimic gut hormones that regulate appetite and blood sugar. They reduce hunger, increase fullness, and help many people eat less without the constant battle. The results in large trials have been striking:

Medication	Type	Average weight loss in trials
Semaglutide	GLP-1 receptor agonist	~15% of body weight (STEP programme)
Tirzepatide	Dual GLP-1/GIP agonist	~20–22% of body weight (SURMOUNT programme)

In a head-to-head trial, tirzepatide produced greater average weight loss than semaglutide (around 20% vs 14%). These are meaningful, medically significant results — but averages hide individual variation, and the medication is only part of the picture.

Powerful, but not magic: the honest caveats

• They are prescription medicines. They require medical assessment, and are intended for people who meet clinical criteria (for example, obesity, or overweight with related health conditions) — not for cosmetic ‘quick’ weight loss.
• Side effects are common. Mostly gastrointestinal — nausea, constipation, reflux — usually improving over time and managed by gradual dose increases.
• Lifestyle still matters. The best and most durable results come from combining medication with nutrition, strength training and behaviour change — partly to protect muscle while losing fat.
• Weight can return. If the medication is stopped without a maintenance plan, much of the weight often comes back, because the underlying biology is unchanged.

Beyond medication: the full programme

Medication is one tool. A complete medical weight-loss programme also uses diagnostics — a metabolic and hormonal blood panel, VO₂ max and resting metabolic rate, body composition, and sometimes continuous glucose monitoring — to understand your specific drivers and to track fat loss rather than just scale weight. Nutrition is built from your data, training protects and builds muscle, and a physician adjusts the plan over time. This is what turns short-term loss into lasting change.

See how this is structured in the My-Health weight loss programme, or read the wider context in our guide to longevity medicine in Dubai.

Who is medical weight loss for?

It suits people who have struggled with weight despite effort, those with metabolic issues such as insulin resistance or type 2 diabetes, and anyone who wants a medically-guided, sustainable approach rather than another crash diet. A physician assesses whether medication is appropriate for you specifically — including whether you meet the clinical criteria and whether it is safe given your health history.

How much does it cost in Dubai?

Cost depends on the programme and whether medication is included. At My-Health, a dedicated weight-loss consultation to design a medically supervised programme starts from around AED 500, with the wider programme (diagnostics, nutrition, monitoring and any medication) priced according to what you need. Medication itself is an additional, ongoing cost.

A weight-loss plan built on your biology Stop fighting your metabolism alone. My-Health’s physician-led medical weight-loss programme in Dubai combines diagnostics, nutrition and — where appropriate — medication. Visit my-health.ae to book.

Frequently asked questions

How much weight can you lose with GLP-1 medication?

In major trials, semaglutide produced around 15% average body-weight loss and tirzepatide around 20–22%. Individual results vary, and outcomes are best when medication is combined with nutrition and lifestyle change.

Are semaglutide and tirzepatide safe?

They are prescription medicines with a generally manageable safety profile in appropriate patients, though side effects (mostly gastrointestinal) are common. They require medical assessment and supervision, and are not suitable for everyone.

Will I regain the weight if I stop?

Often, yes — much of the weight tends to return if medication is stopped without a maintenance plan, because the underlying biology is unchanged. This is why a full programme and long-term strategy matter.

Is medical weight loss just about medication?

No. Medication is one tool. A proper programme uses diagnostics, nutrition, training and monitoring, with medication where appropriate — to produce lasting, muscle-sparing fat loss.

How do I start medical weight loss in Dubai?

With a consultation and assessment to understand your metabolic drivers and whether medication is appropriate. My-Health offers physician-led weight-loss programmes in Dubai.

Medical disclaimer This article is for general education and is not medical advice. GLP-1 and other weight-loss medications are prescription-only and require medical assessment. Consult a qualified physician before starting any weight-loss medication.

About the author

Dr. Anouk Tans is Medical Director at My-Health, a physician-led longevity and preventive-health service in Dubai. All medical care is provided by practitioners licensed by the Dubai Health Authority (DHA), delivered to your home.