This week on Straight, No Chaser, Katy Keiffer chats with one of our generations great food thinkers, Dr. Marion Nestle. Marion's latest book, "Why Calories Count", explores the essential measurement of energy in food and how it affects our nutrition and diets. Find out why food addiction troubles Marion, and how she thinks tackling problems like obesity can be much simpler than it's made out to be. Learn why portion size is to blame for most weight-related problems and why the days of sensible farming and blue chip stocks are long gone. This program was sponsored by Hearst Ranch.

"Calories are involved in the two most important public health problems we face right now - starvation and obesity".

"Nutritionists are not comfortable talking about food as addiction. People talk about food as if its addictive... but we have to eat to live. We can't live without eating food. The question is, what foods do we choose?"

"Food labels were implemented in 1993. Up until that time, the FDA said that food companies could not make health claims about their products. When congress passed the Nutrition Fact Label law, the industry complained if they had to disclose what's bad about their product, they should be able to advertise what's healthy about their product."

"Any diet will help you lose weight if it helps you reduce calories."

--Dr. Marion Nestle on Straight, No Chaser