There is a common misconception that you have to starve yourself to lose weight. This is simply not true! On the contrary, you must eat to lose weight. It is the Glycemic index that can help you determine what happens in your body. Let me explain.
Your body needs glucose, which is a form of sugar, and is the main fuel for the body. The body is constantly trying to maintain blood sugar levels and it is the carbohydrates we eat that turns into glucose which goes directly into the blood stream to feed all the cells of the body. Glucose is the only fuel your brain uses and it is the brain that uses more energy than any other part of your body. If your blood sugar goes down, it starves the brain and a wide variety of symptoms can occur such as feeling weak and sluggish, drowsy, dizzy, confused, headache, irritability, trembling, rapid heart beat, and even anxiety and panic attacks.
Carbohydrates alone do not make a healthy body. We need a balance of protein, carbohydrates, fat, water and exercise to maintain health. The biggest difficulty that we have with weight problems is over indulging in high glycemic foods. These are the foods that contain too much sugar or foods that are refined carbohydrates. If you over indulge in carbohydrates, (which produce insulin) then the excess glucose gets stored as fat. You can counter that by eating protein with it, (which produces glucagons). Glucagons promote the utilization of fat to be used for energy. Insulin and glucagons in balance maintain normal blood sugar levels. A body in a high insulin state promotes excess stored fat and disease.
The foods that are high on the glycemic index are foods such as the root family, potatoes, carrots, parsnips, rutabaga, yams etc. If you want to eat potatoes then I