Followers of the HCG diet are required to eat 100 g of a lean meat, which can include chicken breast, white fish or beef, for both lunch and dinner. They are also required to eat one vegetable with each meal. Some of the vegetables recommended include beets, celery, spinach, tomatoes and cucumbers. Dieters can add a piece of melba toast or a breadstick along with small servings of fruits such as strawberries, an apple or half of a grapefruit with lunch or dinner. They are not supposed to eat anything for breakfast aside from tea or coffee without sugar. This may not seem like a lot of food to eat on a daily basis. But proponents of the diet say that the HCG injections act as an appetite suppressant, which makes it easier for dieters to maintain their 500-calorie-a-day level.