Perhaps Jenny Craig herself.
The Jenny Craig diet is based on small heat-and-serve portions of nutritionally balanced food with a weigh-in program that trains the clients to rely on somebody else...
It doesn't work. I followed it with the intention of losing at least 100 lbs. Both my friend and I took it and followed the rules religiously for over a year. In the end, I gained 45 lbs, my friend...
The Jenny Craig diet gives you a lot of food options to choose from. They can send you the food that you order from them. They have things like cake for desert and lasagna.
Jenny Craig is reliable as long as you stick to the 3 step plan, exercise, and eat the right things. You can not depend on the food alone to lose weight.