Have you ever been so ravenous that you could eat almost anything put in front of you? If you have, you are not alone. Most of us have felt that way at some point. Many feel this way on a regular basis. The low rumbling or growling in your stomach is probably an outcome of having eaten a meal that digested quickly. Quick digestion occurs when you eat a fast sugar or processed carbohydrates say several pieces of white bread where you avoided the butter. Such a meal would digest quickly; most likely converting into fat. Gone in a flash, it would make you hungry in a couple of hours at most.
Put in such a situation, you are likely to want to eat another simple carbohydrate laden meal as the sugar levels in your body drops. Instead, you may wish to consider glutamine. Glutamine is one of the twenty naturally occurring amino acids that make up a protein. It is an essential amino acid, especially if you are undergoing trauma or wasting of your muscles. It is found in high levels in whey and casein protein. Your intestines and immune system love it as these cells primarily use glutamine as their preferred source of energy.
When hungry, therefore, you can consider a shake made out of glutamine. A glutamine shake can be made by mixing glutamine powder with either cream or coconut milk, preferably without any sugar or non-sugar sweeteners. All the ingredients can be mixed in a blender to give you a smoothie/shake. The glutamine acts to reduce the craving for sugar and satiates your cravings.
I would still argue that you are better off, switching to complex carbohydrates that take longer to digest. Vegetables or fruits for example. If you got to do what you got to do, eat simple carbs, have glutamine to prevent the need for the next hit.