The Washington Post:
Everyone knows that people who chow down on french fries, chug soda and go heavy on red meat tend to pile on more pounds than those who stick to salads, fruits and grains.
But is a serving of boiled potatoes really much worse than a helping of nuts? Is some white bread as bad as a candy bar? Could yogurt be a key to staying slim?
The answer to all those questions is yes, according to the provocative revelations produced by a big Harvard project that for the first time details how much weight individual foods make people put on or keep off.