The GM diet is a seven day diet that you do once a month. During these seven days, you severely restrict your food choices and as a result, significantly cut down your caloric intake. The program is designed to create 10 to 17 pounds of weight loss a week. Although there is very little chance that you will lose this much weight in one week, you will see some results, mainly due to the fact that you are reducing your daily caloric consumption.

On the Other: It is not possible to sustain

In addition to not creating any significant weight loss, the GM diet is almost impossible to sustain. The seven day diet will make you miserable and will most likely increase your chances of overeating and indulging in junk food cravings after your diet is over. As a result, most people tend to gain back all the weight that they lose due to the diet.

Bottom Line

Although the GM diet will help you lose some weight over a seven day period, it is mainly due to the reduction in calories and not the specifics of the diet. Moreover, the GM diet places severe restrictions on your food choices which is difficult to maintain, and will likely lead to the regaining of any weight that was originally lost.

Source:

The GM Diet - Does It Really Work?

General Motors: Weight Loss Diet Program

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General Motors Weight Loss Diet