Your diet not only controls your insulin levels, but it also controls a hormone called glucagon. Glucagon has the opposite effect of insulin in your body. Insulin makes your cells take sugar out of the bloodstream and store it, but glucagon tells your liver to release stored sugar for the brain.
Your body tries to keep it balanced between insulin and glucagon so your brain gets the fuel it needs without making too much insulin, which can lead to obesity and the harm caused by it.
At one time or another you probably felt the lightheadedness and shakes caused by low blood sugar. That shows you how much your brain needs blood sugar to do its work. When you are in this state, your brain commands you to eat some carbohydrates right away. This is all caused because of what you ate at your last meal.
Too many carbohydrates in your last meal will cause too much insulin to be released and as a result, your blood sugar levels dip below what they were before you ate the high carb meal.
To stop this cycle you can prevent it from happening in the first place by eating a meal that is balanced between the protein and carbohydrates. It is important to never eat carbohydrates alone, even in a snack. You should balance every meal with protein.
This does not mean you should stick to all protein, because your body needs carbs, but just in the proper balance to stabilize your insulin to glucagon ratio. This healthy balance should keep you feeling well for 4 to 6 hours.
An example would be 4 ounces of meat, 1 cup of vegetables, and 1 cup of brown rice.