Definition of Grapefruit diet

Grapefruit diet: The Grapefruit diet is a weight loss plan that incorporates eating half a grapefruit with each meal and following a severely restrictive low-calorie diet. Like many other "fad" diets, rumors have circulated that this diet is associated with a major medical center, but this is untrue.

The grapefruit diet has not been recommended by medical professionals as a weight loss plan and is not considered to be a healthy way to lose weight. Rather, it is an example of an unhealthy, "fad" diet that may contribute to the cycle of weight loss and gain known as "yo-yo" dieting.