Fad diets come and go but not without affecting the lives of several people who are forever in the lookout for a magical formula which will help them shed kilos within a short period of time without having to starve themselves or exercise. The GM or General Motors diet fits the bill perfectly as it promises to help you lose weight without having to stop eating. The only hitch is you are stuck with eating only 1-2 foods every day. We take a look at this diet plan and tell you why it isn't a wise idea to follow it.