Obesity: Causes, Risk Factors, Symptoms, Treatment


Obesity, a serious global health issue affecting millions of people across the globe. Generally, obesity is defined as a nutritional disease where overfeeding/over-nurturing of the body is practiced over a period of time, with or without the knowledge of the person. This can affect any age group population and health complications develop based on the severity of obesity. On the time period of The World Obesity Atlas 2023, published by the World Obesity Federation (WOF), predicts that globally, overweight and obesity will reach 4.32 trillion per annum by 2035 if precautions are not improving. Basal metabolic index(BMI) is a frequently used formula in determining obesity. It is calculated considering height(mts.) and weight(kgs.) [BMI=Weight in kgs/Height in mt2 ]. According to WHO, BMI-18.5-24.9kg/m2 is considered to be a healthy weight range, and BMI25.0-29.9kg/m2 and BMI->30kg/m2 is considered overweight and obese respectively. Healthy Lifestyle and Dietary changes can prevent a person from falling at risk or to consider as Obese.

Foods to eat and avoid for controlling fat

If you suspect you or someone else is experiencing Obesity, it is crucial to seek immediate medical attention by calling emergency services or consult with a Nutritionist.


Here are some of the primary causes of obesity:

Diet: Consuming high-calorie, low-nutrient foods such as fast food, processed snacks, sugary beverages, and large portion sizes can contribute to weight gain.

Physical Activity Levels: Sedentary lifestyles with minimal physical activity or exercise can lead to weight gain. Lack of regular exercise reduces calorie expenditure, making it easier to gain weight.

Genetics: Genetic factors can predispose individuals to obesity by affecting metabolism, fat storage, and appetite regulation. While genetics play a role, they don't determine the entirety of an individual's risk for obesity.

Environmental Factors: Socioeconomic status, access to healthy food options, community infrastructure (such as walkability and availability of parks), and cultural influences can significantly impact eating habits and physical activity levels.

Medical Conditions: Some medical conditions or medications can contribute to weight gain or hinder weight loss. Conditions such as hypothyroidism, polycystic ovary syndrome (PCOS), and certain medications like antidepressants or corticosteroids may lead to weight gain in some individuals.

Psychological Factors: Emotional factors like stress, depression, or trauma can lead to overeating or unhealthy eating habits, contributing to weight gain.

Lack of Sleep: Inadequate sleep or poor sleep patterns can disrupt hormonal balances, affecting hunger hormones like ghrelin and leptin, leading to increased appetite and weight gain.

Social and Cultural Influences: Cultural norms, family habits, peer pressure, and societal trends can impact dietary choices and physical activity patterns.

Unhealthy Habits: Smoking cessation or certain methods people adopt to quit smoking can lead to weight gain. Additionally, consuming excessive alcohol, which is high in calories, can contribute to obesity.

Risk Factors

Obesity is a multifaceted condition influenced by various factors, including:

Genetics: Family history and genetic predisposition play a significant role in determining a person's susceptibility to obesity.

Lifestyle: Sedentary habits, lack of physical activity, and excessive calorie intake contribute to weight gain and obesity. Poor dietary choices, such as high consumption of processed foods, sugary beverages, and high-fat meals, are major factors.

Environmental factors: Access to healthy foods, socioeconomic status, cultural influences, and the built environment (availability of parks, sidewalks, etc.) can affect an individual's ability to maintain a healthy weight.

Psychological factors: Emotional stress, psychological conditions like depression, and certain medications can lead to overeating or changes in appetite regulation, contributing to weight gain.

Medical conditions: Some medical conditions, such as hypothyroidism, hormonal imbalances, polycystic ovary syndrome (PCOS), and certain medications (e.g., antidepressants, corticosteroids), can contribute to weight gain and obesity.

Age: Metabolism slows down with age, and lifestyle changes, along with hormonal changes, can contribute to weight gain.

Sleep: Poor sleep patterns or sleep disorders can disrupt hormonal balances (like ghrelin and leptin) that regulate hunger and appetite, leading to weight gain.

Pregnancy: Weight gained during pregnancy can contribute to obesity if not lost after childbirth.

Social and economic factors: Socioeconomic disparities can limit access to healthcare, healthy food options, and opportunities for physical activity, thereby increasing the risk of obesity.


Symptoms and signs of obesity can include:

Increased Body Weight: This is the primary characteristic of obesity, with an excessively high body mass index (BMI) indicating the presence of excess body fat.

Increased Fat Deposits: Visible accumulation of fat around the abdomen, hips, thighs, and other body parts.

Breathlessness: Difficulty in breathing or shortness of breath, especially during physical activities, due to the extra weight putting pressure on the respiratory system.

Fatigue and Tiredness: Excess weight can cause fatigue and a general feeling of tiredness due to the body working harder to perform daily activities.

Joint and Back Pain: Obesity can put extra stress on joints and the spine, leading to chronic pain in the knees, hips, back, and other weight-bearing joints.

Snoring and Sleep Apnea: Obesity can contribute to the narrowing of airways, leading to snoring and obstructive sleep apnea, a condition characterized by interrupted breathing during sleep.

Skin Issues: Intertrigo, a skin condition caused by friction and trapped moisture between skin folds, can occur in obese individuals.

Psychological Effects: Obesity can lead to low self-esteem, depression, and other mental health issues due to body image concerns and societal stigmatization.

Increased Sweating: Obese individuals may experience increased sweating, particularly in skin folds and areas where sweat accumulates.

Difficulty Performing Physical Activities: Daily tasks, exercise, or physical activities may become challenging due to reduced mobility and endurance.

Need an Appointment?


Obesity is typically diagnosed through a combination of assessments that consider an individual's body mass index (BMI), waist circumference, and overall health evaluation. BMI, calculated by dividing a person's weight in kilograms by the square of their height in meters, is a widely used measurement to categorize obesity. A BMI greater than or equal to 30 is generally indicative of obesity. However, waist circumference is also considered as excess abdominal fat can pose greater health risks. Additionally, healthcare providers may conduct physical exams, review medical history, and assess factors like diet, physical activity levels, and potential underlying conditions to comprehensively diagnose obesity and its associated health implications.


Treatment for obesity typically involves a multifaceted approach that includes lifestyle changes, dietary modifications, increased physical activity, and in some cases, medical intervention or surgery. The primary goal is to achieve sustainable weight loss while improving overall health and reducing the risk of obesity-related complications.

Lifestyle modifications often focus on adopting healthier eating habits by incorporating a balanced diet rich in fruits, vegetables, whole grains, and lean proteins, while reducing the intake of high-calorie, processed foods. Regular physical activity is essential and can include a combination of aerobic exercises, strength training, and increased daily movement. Behavioral therapy, counseling, and support groups may also be beneficial in addressing the psychological and emotional aspects of obesity. In cases of severe obesity or when other methods have not been successful, medical interventions such as prescription medications or bariatric surgery may be recommended, but these options are typically reserved for individuals with a body mass index (BMI) above a certain threshold or those with obesity-related health complications. These treatments are usually accompanied by ongoing monitoring, support, and follow-up to ensure long-term success in managing obesity.


Preventive Measures

Preventing obesity involves a multifaceted approach that addresses various aspects of an individual's lifestyle, environment, and societal factors. Encouraging healthy eating habits is a fundamental preventive measure. This includes promoting balanced diets rich in fruits, vegetables, whole grains, and lean proteins while reducing the intake of processed foods high in sugars, unhealthy fats, and excessive calories. Educating individuals about portion control, mindful eating, and the importance of regular meals can significantly contribute to weight management and prevention of obesity. Additionally, limiting the consumption of sugary beverages and opting for water or healthier alternatives can aid in weight control.

Physical activity plays a crucial role in obesity prevention. Encouraging regular exercise and reducing sedentary behaviors are vital steps. Incorporating daily physical activities such as walking, cycling, or engaging in sports not only helps burn calories but also enhances overall well-being. Promoting an active lifestyle within communities, schools, and workplaces through accessible recreational facilities and encouraging movement during daily routines can significantly impact obesity prevention. Furthermore, fostering a supportive environment that encourages individuals to make healthier lifestyle choices by addressing societal factors such as access to nutritious foods, safe spaces for physical activities, and reducing socioeconomic disparities is essential in combating the obesity epidemic.

Do's & Don’t's

Do's Don't
Do eat a balanced diet rich in fruits, vegetables, lean proteins, and whole grains. Don't rely on crash diets or extreme fasting for weight loss.
Do engage in regular physical activity, aiming for at least 150 minutes of moderate exercise per week. Don't lead a sedentary lifestyle; minimize sitting for extended periods.
Do keep track of your food intake and portion sizes to maintain awareness of calorie consumption. Don't skip meals, especially breakfast, as it can lead to overeating later in the day.
Do prioritize adequate sleep (7-9 hours per night) to regulate hormones that influence hunger and fullness. Don't use food as a means to cope with stress or emotions. Seek healthier coping mechanisms.
Do seek support from healthcare professionals, nutritionists, or support groups for guidance and motivation. Don't ignore the psychological aspects of obesity; address emotional triggers and mental health concerns.
Do focus on gradual, sustainable lifestyle changes rather than quick-fix solutions. Don't excessively consume processed foods, sugary drinks, or high-fat snacks.
Do drink plenty of water throughout the day to stay hydrated and support metabolism. Don't fall for fad diets or unverified weight-loss supplements.
Do consider seeking medical advice to explore medication or surgical options if necessary and recommended by a healthcare professional. Don't compare your progress to others; everyone's journey is unique.

If you suspect you or someone else is experiencing Obesity, it is crucial to seek immediate medical attention by calling emergency services or consult with a Nutritionist.

Frequently Asked Questions
Obesity is a medical condition characterized by an excessive accumulation of body fat. It is usually measured using the body mass index (BMI) and is often associated with various health risks.
Obesity can result from a combination of factors, including genetics, lifestyle choices, dietary habits, physical activity levels, and environmental influences.
Obesity is typically diagnosed using the body mass index (BMI), which is calculated by dividing a person's weight in kilograms by the square of their height in meters. A BMI of 30 or above is generally considered indicative of obesity.
Obesity is linked to several health problems, including type 2 diabetes, heart disease, stroke, certain types of cancer, sleep apnea, and joint problems.
Yes, genetics can play a role in obesity. People with a family history of obesity may be more prone to gaining weight, but lifestyle factors also contribute significantly.
Prevention of obesity involves adopting a healthy lifestyle, including a balanced diet, regular physical activity, and maintaining a healthy weight. Developing good eating habits early in life is crucial.
Treatment options for obesity include lifestyle changes (diet and exercise), medications, and in some cases, surgery (bariatric surgery). The choice of treatment depends on the individual's health, the severity of obesity, and other factors.
Share With:

Related Diseases