How Should We Be Eating?

The federal government's latest dietary guidelines emphasize balancing food intake with physical activity, and a new USDA food pyramid is meant to help people choose a healthy diet. But some critics of the pyramid have developed another set of guidelines they say will improve health. What goes into a healthy diet and a healthy lifestyle built around food and exercise?

Guests:

George Brooks, professor of exercise physiology and metabolism, University of California, Berkeley

Balz Frei, director and endowed chair, Linus Pauling Institute, Oregon State University

Janet King, chairwoman, 2005 Dietary Guidelines Advisory Committee; professor of nutrition and internal medicine, University of California, Davis; professor of nutrition, University of California, Berkeley; senior scientist, Children's Hospital Oakland Research Institute

Meir Stampfer, professor of nutrition and epidemiology; chairman, Department of Epidemiology, Harvard School of Public Health