Author Michael Pollan says the current aversion to carbohydrates is just the most recent manifestation of America's long-standing love affair with fad diets. He speaks with NPR's Linda Wertheimer.
Copyright 2004 NPR
As NPR's senior national correspondent, Linda Wertheimer travels the country and the globe for NPR News, bringing her unique insights and wealth of experience to bear on the day's top news stories.