For a great many people who decide to lose weight through dieting with a Nutrisystem diet plan, they can measure their success in the number of pounds they lost throughout and the new dress size they are enjoying wearing at the end of it.

But how many people actually stop and think to themselves why and how Nutrisystem actually works and why it works so well for so many people?

This article takes a look at that aspect of this popular weight loss meal replacement diet delivery system to see what it is that makes it so effective.