Two-Letter Diet Secret: ED

What would you say if I told you there was a diet that allowed you to eat as much as you always do, but lose weight? One of two things, probably. Some of you may respond, sounds like another fad diet. Others may say, this is a trick question. It's the latter.

Over at Newsweek, there's an interesting feature, "Filling Up With Less," that reports on the Volumetrics approach to diet. It's pretty straight forward, you eat the same volume as food as you always have, but concentrate on eating low energy density (ED) food?
What's low energy density food?

It's pretty much the stuff that people are always telling you to eat, like fruit, vegetables and -- thank God -- soup (I dig soup because it has flavor… tons of it… and that's my own diet secret… eat high flavor, low-cal food).

Anyway, the Newsweek piece is full of stats on how the diet helped people loose weight. For example, over the course of a year, women on a low-ED diet lost 20 pounds, compared to women on a high-ED diet that lost 15 pounds, despite the fact that women on the low-ED plan ate more food.