Your Story Matters

Help change the world of weight loss science.

Share your journey with us and help change the world.
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Our Mission:

To flip the usual scientific process on its head — finding real weight loss success in a 2-way conversation with the public, building a true partnership that goes beyond data-driven science to people-driven discovery.
IWCR is a transformational initiative to find the healthiest and most successful weight loss strategies from across the globe — helping everyone interested in weight loss be more successful.

Join the IWCR study

Join us

Help change the world for the better.

Big problem, big data

Testing isolated theories in laboratories doesn’t align with weight loss in the messy real world. That’s why IWCR is building the largest weight study ever attempted.

Global perspective

The missing puzzle pieces are hiding right now in the lived experiences of millions of people. We’re going broad and deep, connecting with you to find better answers to weight and obesity.

Join our quest

Lasting weight loss is possible. Many have already achieved it. Many more could do it too, with access to better approaches — that’s what IWCR will provide — with your help.

What type of Weight Warrior are you?


You’ve lost the weight and kept it off. You’ve found the “secret sauce”, “the holy grail”, “magic bullet” that works for you. Food no longer controls you. Others could benefit from your hard-won experience.



You’re still on your journey. You’ve had both successes and setbacks. Good and bad days. You know what doesn’t work, and some things that do work. You are learning. You have valuable insight to share from your battle.



You’re ready to begin — or to begin again. You want to do well, and achieve lasting results with less struggle. You’ve done your research, and you’re prepared to do the work. You would like to participate alongside a diverse group of like-minded individuals.

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