Would you like to know what is safe to eat on the HCG Diet Plan? The HCG 500 Calorie Diet is a very strict diet. To lose weight successfully using the diet, you need to know exactly what you CAN and CANNOT eat. Below I have listed everything that is okay to eat on the HCG Diet. Breakdown of the HCG 500 Calorie Diet: Here is everything that you are allowed to have on the HCG Diet... For Breakfast : You can have coffee or tea NO SUGAR ! Only use 1 tablespoon of milk within a 24 hour period. Stevia can be used instead of sugar. For Lunch : 100 grams of veal, beef, chicken breast, fresh white fish, lobster, crab, or even shrimp. Before you cook your meat, you must remove all of the fat. Weigh the meat raw. You can choose to either broil or grill your meat. For your vegetables you can choose 1 of these: spinach, chard, chicory, beet-greens, green salad, tomatoes, celery, fennel, onions, red radishes, cucumbers, asparagus, cabbage. One Grissini breadstick or ...