Is obesity a disease? What every patient should know

Is obesity really a disease?

Yes — obesity is recognized as a chronic disease by the World Health Organization and major medical associations worldwide. It is driven by complex biology: genetics, hormones that regulate hunger and fullness, metabolism, sleep, medications and environment. Calling it a disease matters because diseases deserve proper treatment, not blame.

Why is obesity not simply a lack of willpower?

Because the body actively defends its highest weight. When you lose weight by dieting alone, hunger hormones rise, fullness hormones fall, and your metabolism slows — a biological response that pushes the weight back. Studies suggest most people regain the weight lost through willpower-only dieting within a few years. This is biology, not weakness.

How is obesity diagnosed?

The most common screening measure is body mass index (BMI): weight in kilograms divided by height in metres squared. A BMI of 30 or above is classified as obesity, and 25–30 as overweight. Doctors also look at waist circumference, body composition and obesity-related conditions, because BMI alone does not tell the whole story.

What health problems does obesity cause?

Obesity increases the risk of type 2 diabetes, high blood pressure, fatty liver disease, sleep apnea, reflux, joint disease, infertility and several cancers. It also affects mood, energy and quality of life. The encouraging news: treating obesity improves or even reverses many of these conditions.

What is metabolic syndrome, and how is it linked to obesity?

Metabolic syndrome is a cluster of findings — increased waist circumference, high blood sugar, high blood pressure and abnormal cholesterol — that often accompany obesity. Together they multiply the risk of heart disease and diabetes. Weight loss of even 5–10% significantly improves all of them.

What treatment options exist for obesity today?

Modern obesity medicine offers a full ladder of options: structured nutrition and lifestyle programs, weight-loss medications such as Mounjaro (مونجارو) and Wegovy (ويغوفي), endoscopic procedures like gastric balloons and endoscopic sleeve gastroplasty, and bariatric surgery such as sleeve gastrectomy and gastric bypass. The right option depends on your BMI, health conditions and goals — there is no single answer for everyone.

When is surgery the right choice?

Bariatric surgery is generally considered for people with a BMI of 40 or above, or 35 and above with obesity-related conditions such as diabetes or sleep apnea. It is the most effective long-term treatment for severe obesity, with studies suggesting 25–35% total body weight loss maintained for many years. Candidacy is always decided in consultation after a full assessment.

Can obesity be treated without surgery?

Yes. Many patients do well with medications, balloons, endoscopic procedures or supervised lifestyle programs — particularly at lower BMI levels. Professor Jamal is certified by the American Board of Obesity Medicine, which means the full range of non-surgical and surgical options can be discussed honestly, and the treatment is matched to you rather than the other way around.

Does obesity in children and teenagers need different care?

Yes. Adolescent obesity requires a careful, family-centred approach, and newer medications such as Wegovy are approved for teenagers in specific situations. Professor Jamal runs a dedicated adolescent weight-management clinic for these cases.

What should I do next?

If obesity is affecting your health or your life, you deserve a proper medical assessment — not another diet. Book a consultation with Professor Jamal at Kuwait Hospital, Sabah Al-Salem (WhatsApp +965 60621662, phone +965 22207777), or online from anywhere in the world via the DAWI app.

This article is educational and does not replace personalized medical advice.