"Healthy Highways" is an idea whose time has come (again). First published in 2004, the book, now in its second edition, is a handy travel guide for people who don't want to sacrifice their seitan and organic veggies while on the road.

Nikki and David Goldbeck -- she's a nutritionist, he's a lawyer -- researched restaurants and natural foods stores across America for this compendium of more than 2,800 places where you can find good and good-for-you eats. Included are lots of Whole Foods and Wild Oats markets, but also local food co-ops and one-offs like The Sentient Bean restaurant in Savannah, Ga., Consciousness Blossoms restaurant in Palm Harbor, Fla., and Granny Feelgoods natural foods store in Miami.

Symbols indicate whether the location is a restaurant, natural foods store or a combination.

If you're daytripping from Pittsburgh, check out the listings for 10 cities and towns in West Virginia, 37 in Ohio and 67 in Pennsylvania. No, not one for each of the state's 67 counties, but they're well distributed. There are 130 natural foods stores and restaurants listed in all of Pennsylvania, not too shabby a showing for a state with the third-highest percentage of people over 65.

So, what does it recommend in Pittsburgh? The 18 listings run from B to Z, from the brillobox bar and restaurant in Bloomfield to the South Side's Zenith Tea Room.

For each listing, the authors provide address, phone number, hours, goods and services and directions.

The Goldbecks, married almost 40 years, live in Woodstock, N.Y., where he established Ceres Press in 1977; it has published most of their nine books and cookbooks on healthy eating. "Healthy Highways," sized to fit in your car's glove compartment, retails for $19.95 (Healthyhighways.com).