Not a naiive question at all!!!
There are a few "cookie" diets around Roxi. The most widely known one was created by a doc in Miami by the name of Dr. Seigel.
www.cookiediet.com
The one that I'm gonna give a whirl (just to jumpstart my weight loss) is the Hollywood Cookie Diet
Hollywood Cookie Diet.
They are basically meal replacement cookies. They come in typical flavors such as chocolate chip, oatmeal raisin, lemon, and a few others. What you do is.... eat a set amount of these "cookies" during your workday and then you eat a sensible dinner at home. Some plans are medically supervised and others are not.