The Mandometer,
It is a talking computer that tells you how much to eat and how much is enough. A very smart invention in the testing process.It is a computer connected to a set of scales with a plate which you fill it up with your food.You need to have a strong will and obey what the computer tells you otherwise it is pointless.
For others, they will just have to depend on their dieting formulas and mental wills.Eat less , exercise more.
credit and thanks to