56, Jamaica Plain, Massachusetts
POSITION: Founder and president of Health Care Without Harm
NOTABLE FOR: Pushing to make hospital food less of a sad joke than it has been. Nearly 400 hospitals and food service contractors have signed his Healthy Food Pledge, an effort to treat hospital food as preventive medicine. Participants perform hospital menu makeovers, stock their larders with CSA-supplied produce, and eliminate foods laced with pesticides and antibiotics.