With so many diets and dieters, why are Americans collectively getting bigger? Science Friday discusses this growing concern in this episode.

Author Jo Robinson digs up tips on how to get the most nutrition out of our fruits and vegetables. [22 mins. 47 secs.]

How much data does the average American consume in an ordinary day? 34 gigabytes of data and 100,500 words, according to a recent study.

In some people, a fruit and vegetable filled diet can lower heart attack risk.

Got a weakness for chocolate chip cookies? Kettle chips? Pizza? Ira talks with former FDA commissioner David Kessler about how tasty foods change your brain, and how the food industry designs the snacks you crave.

Gary Taubes, author of the book Good Calories, Bad Calories, is interviewed about his position that carbohydrates rather than fats and cholesterol are responsible for weight gain and health issues related to diet. Joining him in this...

National Public Radio talks with Dr. Walter Willett, Harvard MD and nutritionist, about changes that need to be made in the 1992 US Food Guide Pyramid. Interesting as an introduction to this topic, with links to related stories.

A new study says people may be sabotaging their diets in an unexpected way - through too little sleep.

New research weighs in on the efficacy of several popular weight loss diets, and finds that it's not so much what you eat, but how much of it.

Ira Flatow and guests discuss the science of steak, like how grass affects the fat in a cut of beef.

Science Friday talks with author Michael Pollan about his latest book, "In Defense of Food: An Eater's Manifesto." He suggests that people can improve their eating by following this simple rule: Don't eat anything that your...

In new research, people who imagined the details of eating bite after bite of a tempting food before eating consumed significantly less of the delicacy.

Pollan once advised, "Eat food. Not too much. Mostly plants." Now, he tells us how to cook it.