The grapefruit diet, a well known fad diet, entered the nutrition scene in the early 1930's. It is also commonly known as the Mayo Clinic diet, but it is still unknown as to why. The Mayo Clinic still denies all implications that the diet correlates to the Mayo Clinic in any way. The grapefruit diet, being the most famous diet of the early 1930's, was attempted by many movie stars, thus making it popular all over the country. The increasing popularity of the grapefruit diet among the famous dubbed it the name the Hollywood diet. The mind-set of those attempting this diet was that maybe they too could achieve the slender figure like that of a movie star. The diet caused the demand in grapefruit to spike. The Grapefruit Diet has survived the times and is still used today.