40 Big Food Thinkers 40 and Under
Sam Kass: White House Food-Policy Adviser
Within three years, the 31-year-old Kass went from being the Obama family's chef to an unprecedented White House role that's a combination of chef, gardener, educator and policy adviser. He's working with First Lady Michelle Obama in her campaign against childhood obesityhe is a fierce advocate for improving school-lunch programsand inspiring other chefs to help.
Photo © Kevin Dietsch/Corbis.