Sure, mom always said to eat your vegetables -- and you know not to eat an entire case of potato chips for lunch -- but what are the more complex ways that diet and health interact? How much do we really know about all those vitamins and minerals? And how is exercise part of this complete breakfast?

In this hour of Science Friday, we'll look at how we should be eating and exercising to stay healthy, and talk about the role of supplements in a balanced diet. We'll also talk about the federal government's new dietary guidelines for Americans, and the new food pyramid released by the USDA earlier this year.

Call in with your questions and comments at 1-800-989-8255 (3-4 Eastern). Teachers, find more information about using Science Friday as a classroom resource in the Kids' Connection.

Guests:
George Brooks
Professor, Exercise Physiology and Metabolism
University of California, Berkeley
Berkeley, California

Balz Frei
Director and Endowed Chair, Linus Pauling Institute
Oregon State University
Corvallis, Oregon

Janet King
Chair, 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
Oakland, California

Meir Stampfer
Professor of Nutrition and Epidemiology
Chair, Department of Epidemiology
Harvard School of Public Health
Boston, Massachusetts

Books/Articles Discussed:

2005 Dietary Guidelines Advisory

(find books discussed on previous broadcasts)

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This segment produced by Karin Vergoth

Science Friday
With Host Ira Flatow: Making Science Radioactive