Breakfast: black tea or coffee, 1/2 a grapefruit, 1 piece of toast with 1 Tablespoon of peanut butter. Some version specify 1/3 of a grapefruit, some call for artificial sweetener to be added to the coffee, some allow grapefruit juice to be substituted for the grapefruit.
Lunch: 1/2 cup tuna, 1 piece dry toast, black coffee or tea. Some versions call for tuna in water, some call for artificial sweetener with the coffee or tea.
Dinner: 3 ounces lean meat, 1 cup green beans, 1 cup carrots, 1 apple, 1 cup vanilla ice cream. Some versions specify a low fat ice cream, other do not. Some versions call for 1 cup of beets instead of carrots.