Obesity is more than just a weight issue—it’s a complex medical condition influenced by genetics, metabolism, environment, and lifestyle choices. Managing obesity requires a holistic approach that includes medical guidance, nutritional counseling, and sustainable lifestyle changes.
What Is Obesity?
Obesity occurs when the body consistently takes in more calories than it burns, leading to excess fat storage.
A common tool used to assess obesity is the Body Mass Index (BMI), calculated by dividing weight in kilograms by height in meters squared.
| BMI | Weight Status |
| Below 18.5 | Underweight |
| 18.5 – 24.9 | Healthy |
| 25.0 – 29.9 | Overweight |
| 30.0 and above | Obese |
It’s also important to recognize central obesity, a condition where people with a normal weight may still carry excess visceral fat around the abdomen. This is measured by waist circumference:
- Over 35 inches (89 cm) in women
- Over 40 inches (102 cm) in men
High visceral fat increases the risk of serious health conditions, such as cardiovascular disease and type 2 diabetes.
A Holistic Approach to Obesity and Weight Management
Obesity can result from a variety of risk factors, including genetics, metabolism, environmental influences, lifestyle habits, medical conditions, and certain medications.
While you can’t control all these factors, understanding them is essential to achieving a healthy weight. Working with a specialist physician can help you develop an effective, personalized weight management strategy.
1. Genetic and Epigenetic Factors
Scientists have identified over 250 genes associated with obesity. These genes impact individuals differently—genetic influence may account for as little as 20% or as much as 70–80% of a person’s weight tendency.
Both genetic and epigenetic variations (changes in how genes are expressed without altering DNA) affect metabolic pathways, appetite regulation, and fat storage. They can lead to insulin resistance, high cholesterol, inflammation, hypertension, and fat buildup in the liver.
Key prenatal and early-life factors influencing obesity risk include:
- Maternal and paternal nutrition
- Exposure to toxins (e.g., organochlorides, arsenic)
- Maternal smoking, stress, gestational diabetes
- Maternal antibiotic use and gut microbiota changes
- Diets high in sugar, saturated fat, and low physical activity
Epigenetic changes often occur through DNA methylation—a mechanism that alters gene expression and plays a key role in obesity.
2. Metabolic Factors
Metabolic syndrome is a cluster of conditions—including obesity, insulin resistance, high blood pressure, and elevated triglycerides—that significantly increases the risk of heart disease and diabetes.
Visceral fat plays a major role by releasing inflammatory substances called adipocytokines (e.g., leptin, TNFα, IL-6, angiotensin II) that promote insulin resistance and other complications.
At the same time, adiponectin, a hormone that protects against inflammation and vascular disease, is reduced in people with visceral fat. Elevated free fatty acids (FFAs) also disrupt insulin function and contribute to a harmful cycle of fat storage and glucose production.
3. Environmental Influences
Where and how we live directly affects our health behaviors. Factors include:
- Lack of sidewalks, bike paths, or green spaces
- Proximity to fast food vs. access to grocery stores or farmers markets
- Workplaces that promote sedentary habits
Emerging research also suggests that air pollution may contribute to obesity by promoting oxidative stress and inflammation in fat tissue.
4. Lifestyle Choices
Modern lifestyles often encourage inactivity—from long hours in front of screens to frequent consumption of high-calorie, low-nutrient foods.
Other key lifestyle contributors:
- Overeating and diets high in saturated fat and added sugars
- Poor sleep: Getting less than 7 hours per night disrupts hunger-regulating hormones
- Stress: Chronic stress alters hormones involved in appetite and fat storage
Together, these factors make it easier to gain weight and harder to lose it.
How NMC’s Primary Care Services Can Help
At Northern Medical Center, we take a comprehensive approach to weight management, starting with an in-depth health evaluation.
Our services include:
- Personalized Health Assessments: Tailored to your individual health needs and goals.
- Nutritional Counseling: Includes customized diet plans and supplements to support healthy methylation and address epigenetic factors.
[VERIFY INFO]: Dr. JingDuan Yang at NMC is experienced in this field—please confirm or provide a short bio/credentials to include here. - Chronic Disease Management: We help manage underlying conditions like metabolic syndrome or PCOS that can affect weight.
Some medications can also lead to weight gain, such as:
- Antidepressants
- Antipsychotics
- Beta-blockers
- Birth control pills
- Glucocorticoids
- Insulin
If you’re gaining weight while on medication, talk to your provider about alternatives that won’t affect your weight.
- Preventive Screening and Monitoring: Early detection of obesity and related health risks allows for timely intervention and better outcomes.
Mental Health Support
Obesity can take a toll on emotional well-being, leading to low self-esteem, anxiety, depression, and social withdrawal.
At NMC, our unique ACES holistic care model integrates mental health support, helping you address emotional challenges and restore confidence on your wellness journey.
Take the First Step Toward Better Health
On World Obesity Day, take action—for yourself and your loved ones. Whether you’re seeking help with weight management, preventive screenings, or chronic disease care, Northern Medical Center is here to support your path to a healthier life. Call 845 800 5118 for your appointment!