Compiled By Dave Schafer Executives on the go can eat healthy even during airport layovers, but they'll have to do some hunting to find the right foods. That's the conclusion from a survey conducted by the Physicians Committee for Responsible Medicine (PCRM), a nonprofit health organization. PCRM rated the nation's 10 busiest airports on the availability of healthy food choices. San Francisco International Airport landed the highest marks -- 96% of its restaurants got the "healthy" rating awarded to restaurants that offer at least one low-fat, high-fiber, cholesterol-free entreé. Detroit's airport scored the lowest with only 33% of its restaurants serving "healthy" fare. "Plane changes and layovers can be frustrating enough without being limited to mystery-meat chili dogs and greasy hamburgers," says PCRM dietitian Brie Turner-McGrievy. "Unfortunately, less than 60% of the airport restaurants we surveyed offer healthy, vegetarian meals. "The good news is that healthy food is everywhere if you just know where to look. Even in the worst airports, you can usually find a bean burrito or veggie burger." For the complete rankings, go to Physicians Committee for Responsible Medicine.