A grapefruit diet meal plan includes three to four servings of carbohydrates per day, two to four servings of vegetables, one to two servings of dairy and two servings of protein. It has four to six servings of fruit per day, typically either 1/2 of a grapefruit or grapefruit juice.
One example meal plan is two eggs and two slices of bacon for breakfast, a salad and any amount of meat for lunch, meat or fish and a salad with a red or green vegetable for dinner, and 8 ounces of skim milk for a bedtime snack. Dinner includes a cup of coffee or tea and butter or spices for cooking the vegetable. The plan includes a serving of grapefruit with every meal.
The plan prohibits cooking food for the grapefruit diet in aluminum pans. The plan requires dieters to allow at least four hours between eating meals that contain protein and meals that contain starch. The grapefruit diet forbids eating food that is very hot or very cold.
The grapefruit diet lasts 10 to 12 days. Grapefruit doesn't cause weight loss, although eating it with every meal may cause dieters to feel full and therefore eat less. However, WebMD.com recommends a more balanced diet plan.