Introduction and background

The hCG protocol for weight loss pairs careful calorie restriction with the introduction of a specific hormone to the body. Doctor A.T.W. Simeons developed the protocol after observing pregnant women in India who despite low food intake gave birth to healthy babies. He isolated the hormone human chorionic gonadotropin, or hCG, as the key element in the successful utilization of stored body fat while dieting.


HCG and Hypothalamus

It is believed HCG hormone assists in weight loss by coaxing the body and hypothalamus gland to use stored fats.

The hypothalamus is located near the pituitary gland in the brain and controls automatic bodily functions including breathing, heart rate, reproduction, sleep and digestion. The presence of HCG in the body signals the hypothalamus to release stored fats when low levels of calories are consumed. This hormone is naturally present in pregnant women to ensure the fetus is receiving enough nourishment.


Starting the Protocol

Always consult with your physician before starting any diet program. It is especially important to ensure that your liver and kidneys are functioning normally. Choose whether you wish to follow a three-week (rated for a 15 to 20 pound loss) or six-week (rated for a 30 to 40 pound loss) program, depending on the amount of weight you are trying to lose. Obtain the medical supplies needed; a vial of hCG, insulin needles and alcohol prep pads. Begin injecting yourself daily with hCG in the dosage proscribed. On the first two days of the “diet” you will actually be over-eating to increase your body’s available fat. Eat as many fatty foods as possible on these two days, such as bacon, cheese and nuts.


Calorie Restriction

Continue to inject a dose of hCG daily. Start calorie restriction on day 3. Consume only about 500 calories a day, consisting of portions of foods specified in the protocol. You will eat two portions of each per day, not to be eaten at the same time; 3.5 oz. of lean protein, 3.5 oz. of vegetable, and fruit. Acceptable protein sources are lean meats, such as beef and chicken breast, seafood, such as shrimp, lobster and crab, white fish such as tilapia, halibut and striped bass, or one whole egg with three additional whites. Choose from spinach, chard, chicory, beet-greens, lettuce, tomatoes, celery, fennel, onions, radishes, cucumbers, asparagus or cabbage for your vegetable servings. Do not mix different types of vegetables in a serving. Choose from an apple, an orange, six strawberries or one-half grapefruit for your fruit serving. Cook food by steaming, broiling, baking or grilling, but do not add any extra fats. Season your food with lemon juice, raw apple cider vinegar, salt, pepper, chili, garlic or any herbs. Drink about 2 liters of fluids per day. Tea, coffee and water are allowed. Do not use body lotions, as fat is also absorbed through the skin. Record your weight around the same time every morning, without clothing. Stop injecting hCG on the last three days of your diet plan. Continue with calorie restriction to the end of your protocol.



Eat a low-carbohydrate diet for three weeks after finishing the protocol to allow your body to adjust. Continue to weigh yourself daily. Your goal is to stay below 2.2 pounds of the weight recorded on the day of your last injection, and 2 pounds above the weight recorded on the last day of calorie restriction. Slowly re-introduce carbohydrate foods to your diet while maintaining your weight.


Losing More Weight

Maintain your weight for at least six weeks before another loss protocol, more for subsequent protocols. This time allows your body to catch up on reducing connecting tissues that held fat cells, for your skin to shrink and so that you do not build a tolerance to the medication.



The HCG diet protocol has gained much popularity and speculation since its increased availability to consumers in 2009. It is believed this hormone assists in weight loss by coaxing the body and hypothalamus gland to use stored fats.



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