Obesity & Weight Management

Carrying more weight than is healthy for your height is one of the most common reasons people seek medical advice today, and it is also one of the most important. Excess weight — particularly fat carried around the waist — is closely linked to type 2 diabetes, high blood pressure, abnormal cholesterol, fatty liver, heart disease, breathing problems and joint pain. The good news is that even a modest, sustained weight loss (often around 5–10% of body weight) can meaningfully reduce these risks. The aim of this service is not to chase an unrealistic number on the scale, but to understand why your weight is where it is, identify any medical contributors, and build a realistic plan you can sustain.

This service covers the full range of weight-related concerns seen in an Internal Medicine / General Physician practice — overweight and obesity, unhealthy or unexplained weight gain, difficulty losing weight despite effort, abdominal obesity and a high waist circumference, body mass index (BMI) and weight assessment, medical weight management and weight-loss consultation, the metabolic syndrome, the relationship between obesity and diabetes, blood pressure, fatty liver and thyroid disorders, weight-related breathlessness and joint pain, healthy weight loss, the weight-loss plateau, and weight regain after earlier success. Where a problem overlaps with diabetes, blood pressure, thyroid, liver, breathing or joint care, Dr. Nayak connects the management across the relevant services.

Understanding overweight and obesity

Overweight and obesity are defined by the body mass index (BMI), which relates weight to height. A BMI of 25–29.9 is classified as overweight and 30 or above as obesity, with higher categories beyond that. BMI is a useful screening tool, but it is not a perfect measure — it does not distinguish muscle from fat, and it says nothing about where fat is carried. Fat around the abdomen (visceral fat) is far more harmful to health than fat carried on the hips and thighs, which is why waist circumference is measured alongside BMI. For most South Asian adults, the health risks of excess fat begin at a lower BMI and waist circumference than the standard cut-offs, so the assessment is always interpreted in context. See BMI and Weight Assessment for how these numbers are read.

Why weight affects overall health

Excess body fat is not simply stored energy — it is biologically active tissue that releases inflammatory signals and hormones, raising the risk of a wide range of diseases. It contributes to insulin resistance and type 2 diabetes, raises blood pressure and strains the heart, drives abnormal cholesterol and triglycerides, causes fat to accumulate in the liver, worsens sleep-disordered breathing and breathlessness, and adds mechanical load to weight-bearing joints. These risks tend to cluster together as the metabolic syndrome, and they multiply rather than simply add. This is why weight management is treated as metabolic and cardiovascular care, not just a cosmetic concern.

Common patient concerns

Most people come in for one of a few reasons: they have been told their weight or BMI is high and want a proper assessment; they have gained weight rapidly or without an obvious cause and want to know why; they have been trying to lose weight without success and feel stuck; they have a related condition such as diabetes, high blood pressure or fatty liver and have been advised to lose weight; or they have developed breathlessness or joint pain they suspect is weight-related. Some want a structured medical plan; others simply want to know whether their weight is genuinely a health problem. Each of these is explored in its own page below.

Causes and contributors to weight gain

Weight gain is rarely explained by a single cause. It usually reflects an imbalance between energy in and energy out, shaped by several contributors acting together: a diet high in processed foods, refined carbohydrates, sugary drinks and large portions; a sedentary lifestyle and low everyday activity; inadequate or poor-quality sleep; chronic stress; certain medicines (such as some antidepressants, antipsychotics, steroids and diabetes medicines); stopping smoking; and, in some cases, an underlying medical condition. Identifying which contributors are relevant to you is the first step, because the plan that works is the one aimed at your actual causes. See Weight Gain and Unexplained Weight Gain for the detailed assessment.

Metabolic and hormonal factors

In a minority of people, weight gain or difficulty losing weight is driven largely by a hormonal or metabolic cause rather than lifestyle alone. An underactive thyroid (hypothyroidism) slows the metabolic rate and can contribute to weight gain and fatigue; insulin resistance and high insulin levels promote fat storage and make weight loss harder; polycystic ovary syndrome (PCOS) in women is associated with insulin resistance and weight gain; Cushing’s syndrome (excess cortisol) causes characteristic weight gain around the abdomen and face; and certain medicines promote weight gain as a side effect. These are looked for during the evaluation rather than assumed, because treating the underlying cause changes the whole picture. See Obesity and Thyroid Disorders and Difficulty Losing Weight.

Medical evaluation

Your evaluation begins with a detailed history — the pattern of weight change over time, your diet and eating patterns, physical activity, sleep, stress, medicines, and any symptoms such as fatigue, cold intolerance, menstrual changes or breathlessness. An examination follows, measuring weight, height, BMI and waist circumference, blood pressure, and looking for signs of hormonal or metabolic causes. Dr. Nayak then selects the tests that will genuinely clarify the picture — checking for diabetes and prediabetes, thyroid function, cholesterol and triglycerides, liver function, and other contributors when the history suggests them — rather than ordering a blanket panel.

Weight and body composition assessment

Weight is assessed in context, not as a single number. BMI gives the broad category, waist circumference indicates how much harmful abdominal fat is present, and the trend over time matters more than any one reading. Where useful, body composition (the proportion of fat versus muscle) can be estimated, and the assessment always considers height, age, sex and ethnicity. The goal is to judge whether the weight is genuinely affecting health and to set a realistic target — not to push everyone toward an arbitrary “ideal” weight. See BMI and Weight Assessment and Abdominal Obesity.

Relevant investigations

• Blood sugar or HbA1c — to detect diabetes or prediabetes.
• Lipid profile — total cholesterol, LDL, HDL and triglycerides.
• Thyroid function (TSH, free T4) — to check for an underactive thyroid.
• Liver function tests — to look for fatty liver.
• Kidney function tests and complete blood count — as part of the overall picture.
• Blood pressure measurement — often repeated, including home readings.
• Waist circumference — measured alongside BMI to assess abdominal fat.
• Further tests when indicated — such as hormonal tests for PCOS or cortisol-related disorders when the history suggests them.

Diabetes and metabolic risk assessment

Because excess weight is so closely tied to metabolic disease, the assessment routinely includes screening for diabetes (HbA1c or fasting blood sugar), prediabetes, abnormal cholesterol and triglycerides, and the cluster of features known as the metabolic syndrome. Finding these together does not mean separate, unrelated problems — it means the same underlying process is driving several risks at once, and the plan needs to address them together. See Metabolic Syndrome, Obesity and Type 2 Diabetes and Obesity and Hypertension.

Lifestyle and nutrition approach

The foundation of any weight-management plan is a sustainable change to how you eat and move. Rather than a restrictive “diet” that is abandoned within weeks, the aim is a realistic eating pattern you can keep to long-term — typically reducing processed foods, refined carbohydrates and sugary drinks, increasing vegetables, protein and whole foods, managing portions, and being mindful of eating patterns and triggers. There is no single “best” diet; the best approach is the one that fits your life, preferences and culture and that you can sustain. See Healthy Weight Loss and Medical Weight Management.

Physical activity and sustainable behaviour change

Physical activity supports weight loss, preserves muscle during weight loss, and independently improves metabolic health — but it does not have to mean a gym routine. Building everyday movement back into the day, finding activities you enjoy, and gradually increasing both the amount and the intensity are more sustainable than an all-or-nothing approach. Equally important are sleep and stress, both of which affect appetite, cravings and weight. Behaviour change — setting realistic goals, tracking progress, anticipating setbacks and building habits — is what turns a short effort into a long-term result.

Medical treatment options

For some people, lifestyle alone is not enough, and medical treatment may be appropriate. This is considered when there is a meaningful health risk (such as diabetes, high blood pressure or fatty liver) and the BMI is in a range where medication is recommended, or when lifestyle change has not produced enough change despite genuine effort. Any medication is used alongside — not instead of — lifestyle change, and is chosen and monitored carefully, weighing benefit against potential side effects. Dr. Nayak will discuss whether medication is appropriate for you, what it can realistically achieve, and how it fits into a long-term plan. See Medical Weight Management and Weight Loss Consultation.

Long-term weight maintenance

Reaching a healthier weight is only part of the journey; keeping it there is the harder and more important part. The body responds to weight loss with biological changes that increase hunger and make regain easier, which is why most people who lose weight regain some of it over time. A maintenance plan — continued attention to eating and activity, regular weighing, a plan for catching small regains early, and ongoing follow-up — is built in from the start rather than added at the end. See Weight Regain and Weight Loss Plateau.

When medical consultation is important

• A BMI of 25 or above (or lower for South Asian adults), especially with a large waist circumference.
• Rapid or unexplained weight gain.
• Weight gain with fatigue, cold intolerance, menstrual changes or other hormonal symptoms.
• Difficulty losing weight despite genuine, sustained effort.
• A related condition such as diabetes, high blood pressure, fatty liver or high cholesterol.
• Breathlessness, snoring or joint pain you suspect is weight-related.
• Regaining weight after earlier success and wanting a structured plan to manage it.

In-clinic and teleconsultation

Consultations are available both in-clinic in Bhubaneswar and over teleconsultation. An initial weight and metabolic assessment, review of test reports, and ongoing follow-up often suit teleconsultation, while a first assessment that needs examination, body measurements and blood tests is best done in person. A flat ₹500 fee applies to either format. Use any “Book an appointment” button on this page to schedule your visit.

Related services

• Diabetes & Metabolic Health
• Hypertension & Cardiovascular Risk
• Thyroid Disorders
• Liver & Fatty Liver Health
• Respiratory & Breathing Problems
• Joint, Muscle & Rheumatology
• Preventive Health & Health Check-ups
• Abnormal Test Results