From almost 500 pounds and a total couch potato to a living example of how extreme health improvements are possible, Marcus Cook talks to us about his own journey of weight loss and athletic discovery and how he was supported by so many along the way.

In New York, Sunday, November 3, 2019, carrying a large placard of "Fat Marcus", "Fit Marcus" will run 26.2 miles in the biggest marathon in the world. He wants to share the message that "anything is possible" and each of us is capable of overcoming seemingly insurmountable challenges.