National Obesity Awareness Month

History & origins

National Obesity Awareness Month is observed in September in the United States, but its exact origin is not as clearly documented as some other health observances. The broader push for obesity awareness gained visibility in 2010, when September was designated National Childhood Obesity Awareness Month in the U.S.; later advocacy groups and health organizations expanded the conversation to obesity prevention, treatment, and stigma reduction across all ages. Today, it is an informal awareness observance rather than a formal holiday.

Why it matters

National Obesity Awareness Month matters because obesity is a common chronic disease in the U.S. and is linked to serious conditions such as type 2 diabetes, heart disease, stroke, and some cancers. It also draws attention to the role of prevention, access to care, and respectful, evidence-based communication so people can focus on health without added stigma.

How to celebrate

Schedule a health screening with your doctor. Learn about healthy eating and portion control. Start or increase physical activity. Focus on health, not just weight. Support obesity prevention programs. Reduce weight stigma. Share evidence-based health information on social media.

Facts

• Over 42% of American adults have obesity
• Obesity increases risk for many serious health conditions
• Small, sustainable lifestyle changes can make a big difference
• Genetics, environment, and behavior all play roles in obesity
• Obesity costs the US healthcare system nearly $173 billion annually