How common is obesity worldwide?

Reviewed by Yoshinori Abe, MD

Internal Medicine

Obesity is one of the most common chronic health conditions worldwide, affecting hundreds of millions of people across nearly every country. Defined as excess body fat that increases the risk of serious health problems, obesity is linked to type 2 diabetes, heart disease, stroke, and certain cancers. Its causes are complex, involving genetics, diet, physical activity, environment, and underlying medical conditions.

Because obesity often overlaps with other symptoms — fatigue, joint pain, hormonal changes, or shortness of breath — it can be difficult to know whether what you're experiencing is related to weight, another condition, or both. That's why understanding your specific symptoms matters. Take a free, instant, online symptom check to get personalized insights and clear guidance on your next steps.

Reviewed for medical accuracy: 07/20/2026

Important Next Steps

Learn if obesity affects your health Discover causes of obesity and risks Find out if your weight needs care See OTC options for weight-related concerns Find an obesity specialist near you Understand safe home remedies for obesity Discover if obesity needs urgent care

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Explanation

Obesity is a major health concern that affects many people around the world. It is a condition where a person has too much body fat, which can lead to health problems. According to the information from the sources provided, obesity rates have been increasing over the years and are seen in both adults and children across different countries.

Key Points:

Global Trend: Obesity is becoming more common globally, with increasing numbers of people affected in many countries.
Health Impact: Having obesity can lead to other health issues, like heart disease and diabetes.
Age Groups: Both adults and children are experiencing higher rates of obesity, making it a widespread concern.

These insights highlight the importance of addressing obesity through healthy lifestyle choices and public health initiatives to help reduce its prevalence and impact on health. If you're experiencing symptoms related to weight or other health concerns, take our free symptom checker to better understand what might be affecting your wellbeing.

(References)

Sørensen TIA, Martinez AR, & Jørgensen TSH. (2022). Epidemiology of Obesity. Handbook of experimental pharmacology, 35419622.
NCD Risk Factor Collaboration (NCD-RisC). (2024). Worldwide trends in underweight and obesity from 1990 to .... Lancet (London, England), 38432237.
Chooi YC, Ding C, & Magkos F. (2019). The epidemiology of obesity. Metabolism: clinical and experimental, 30253139.

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