Check Out OAC's NEW Resource Library!

Our resource library offers quality, science-based information on obesity, treatment, nutrition, exercise & much more! Explore hundreds of topics to help YOU on your journey with weight and health!

For a Limited Time: New
#StopWeightBias Fall Merchandise!

Make a difference today, shop our limited-time Stop Weight Bias merchandise celebrating kindness, and help us push our mission to #StopWeightBias forward!

Subscribe to OAC’s YouTube Channel!

Explore our FREE video educational resources! Access inspiring, insightful, & interactive video content through our YouTube channel.

Let’s Stop Weight Bias!

Learn How you can be part of the solution to stop weight bias!

Welcome to the OAC!

Formed in 2005, the Obesity Action Coalition (OAC) is the nation’s leading grassroots obesity organization with the mission to elevate & empower people affected by obesity through education, advocacy, awareness, & support.

The Obesity Action Coalition, OAC, is a national nonprofit organization dedicated to giving a voice to the millions of Americans affected by the disease of obesity and empowering them along their journey toward better health.


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Together We Are Making A Difference.

Since its inception in 2005, the OAC has grown to be the nation’s leading voice on obesity. Today, we’re a more than 70,000 member-strong national nonprofit focused on:

  • Raising awareness and improving access to prevention and treatment of the disease of obesity
  • Providing evidence-based education on obesity and its treatments.
  • Fighting to eliminate weight bias and discrimination.
  • Elevating the conversation of weight and its impact on health.
  • Offering a community of support for people affected.

Your support fuels our mission. When you participate, advocate and donate, you help us to create a better world for the more than 93 million Americans affected by the disease of obesity. With your help, we can continue to elevate and empower those affected by obesity through education, advocacy and support.

Make a difference today.

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News & Events

OAC Newsroom


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OAC Blog

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Key Dates


15dec1:00 pm1:30 pmOAC's Monthly Broadcast

16dec7:00 pm7:30 pmOAC Health Talks: How to Enjoy the Holidays and Stay on Track


No Events

OAC donation hand with giftYour tax-deductible donation helps the OAC to raise awareness, advocate for improved access, provide evidence-based education, fight to eliminate weight bias and discrimination and elevate the conversation of weight and its impact on health.