The Jenny Craig diet was begun by Genevieve Guidroz, an American weight-loss guru.

Nestle now owns the Jenny Craig company which began operations in Australia. There are currently 550 weight loss centers under the Jenny Craig umbrella. Read on for more information.

The Jenny Craig diet is billed as the biggest weight management system in the world. The diet uses a well known formula – eat less, exercise more. Any health expert would agree. More than a fad diet, the Jenny Craig diet is designed to be a life long healthy eating system.

Celebrity spokespeople have long been a staple of the Jenny Craig diet. One of these was a famous actress who had appeared in Cheers and various Star Trek movies – Kristie Alley. A pretty heavy Kristie first became the spokesperson in 2005. Her Jenny Craig fame came at a time she was 200 pounds, fresh off an appearance in a documentary called fat actress. Her weight loss on the Jenny Craig diet became a matter of dispute – Kristie claimed to have dropped 75 pounds.

There is also personal counseling as part of the Jenny Craig diet.

The counselors have no training or certification beyond what Jenny Craig gives them. Here's how the Jenny Craig diet works. People who join start out with diet plans based on prepackaged foods. The selection is large – over 75 frozen and dry foods to which people add things like store bought vegetables and dairy.

Advanced users make their own diets from the Jenny Craig selections. Then there comes a time when more than half the food eaten is store bought, rather than purchased from Jenny Craig.

The Jenny Craig diet was tested by the medical site WebMD.

The conclusion was that the provided food is of high quality, and that the diet can help people lose weight fairly quickly. So give the Jenny Craig diet a try.