vegetables might help prevent his cancer from coming back. “That’s when I started to understand the connection between what I eat and how I feel,” he says. Mr. Stein recovered from cancer, went back to high school, and then on to the University of Pennsylvania. In college he took every class on food he could find and went out to eat with his professors. After graduation, he began working at Philadelphia schools as a nutrition education teacher with the Agatston Urban Nutrition Initiative at the University of Pennsylvania. He says he was a horrible teacher, but he discovered he liked working with groups of kids, especially high schoolers. One of the schools where he worked had a small store that was selling only unhealthy snacks and drinks. He wanted to introduce some healthy options. He and several students started to make granola bars to sell at the store. They were a hit, he says. That experience led Mr. Stein to create a business called Rebel Ventures, which makes Rebel Crumbles, a healthy breakfast cake sold in hundreds of Philadelphia public and Catholic schools. He runs the business—along with eight high school students—as part of his job at Penn’s Netter Center for Community Partnerships. “We are a food business run by high schoolers” is how Mr. Stein describes Rebel Ventures, which Jarrett Stein Finding a delicious way to eat well Jarrett Stein’s inter- est in healthy eating began years before he started a business to make nutritious food for Philadelphia schools. He was only 14 years old when he found out he had a cancer named non-Hodgkin lymphoma. He had to stop going to high school and spend a long time in the hospital. The chemotherapy drugs he was given to fight the cancer made him sick, and he lost a lot of weight. “My doctor said, ‘Either we are going to have to feed you through a tube in your nose and you aren’t going to be able to eat anything else, or you are going to have to figure out a way to eat,’” Mr. Stein recalls. While in the hospital, he says, he started watching the Food Network on television. “I watched people making food and I got hungry,” he says. “I developed a passion for food and for cooking.” He says he started to focus on healthy eating because his doctor said that eating fruits and 20