NEW YORK (AP) — Documentary filmmaker Morgan Spurlock, an Oscar nominee whose most famous works skewered America’s food industry and who notably ate only at McDonald’s for a month to illustrate the dangers of a fast-food diet, has died. He was 53.

Spurlock died Thursday in New York from complications of cancer, according to a statement issued Friday by his family.

“It was a sad day, as we said goodbye to my brother Morgan,” Craig Spurlock, who worked with him on several projects, said in the statement. “Morgan gave so much through his art, ideas, and generosity. The world has lost a true creative genius and a special man. I am so proud to have worked together with him.”

Spurlock made a splash in 2004 with his groundbreaking film “Super Size Me,” which was nominated for an Academy Award. The film chronicled the detrimental physical and psychological effects of Spurlock eating only McDonald’s food for 30 days. He gained about 25 pounds, saw a spike in his cholesterol and lost his sex drive.

“Everything’s bigger in America,” he said in the film. “We’ve got the biggest cars, the biggest houses, the biggest companies, the biggest food, and finally: the biggest people.”

In one scene, Spurlock showed kids a photo of George Washington and none recognized the Founding Father. But they all instantly knew the mascots for Wendy’s and McDonald’s.

The film grossed more than $22 million on a $65,000 budget and preceded the release of Eric Schlosser’s influential “Fast Food Nation,” which accused the industry of being bad for the environment and rife with labor issues.

Spurlock returned in 2017 with “Super Size Me 2: Holy Chicken!” — a sober look at an industry that processes 9 billion animals a year in America. He focused on two issues: chicken farmers stuck in a peculiar financial system and the attempt by fast-food chains to deceive customers into thinking they’re eating healthier.