How does lowering blood sugar actually effect fat metabolism as on a diet?
If you're about to tell me that insulin stores glucose in fat and muscle, anything about the Glycemic Index, etc then you're wasting time. I know that already. I want an INTENSELY CHEMISTRY AND BIOLOGY based answer to how specifically lowered blood sugar levels will motivate the body chemically to favor adipose tissue metabolism. Specifically, the question comes from cinnamon - I'd always assumed that since it was an insulin 'substitute' that it would somehow be recognized by the receptors in the GI tract and tell the pancreas to lay off with insulin production, thus less glucose would be stored on a meal without cinnamon, but thinking of it that's really just called insulin insensitivity so that was a retarded idea arising from lack of thought on the matter. So if you still have all the insulin the meal would normally give, and you've stored more glucose in muscles and liver and fat, um... how's that help you lose weight? Shit I'm outta room, read extra below.... Fat weight, of course (not muscle mass!) Only thing I can figure is that it makes you store stuff, which burns more calories than you ate after it's broken down again. Like, ok, insulin tells -> store! And the cells are like, ok; and active transports use energy to do the storage and atoms are bound and stuff happens so that while you ate and had in you 100 calories here, you really only end up storing a net of 85 in the end. Then your body says crap, low blood sugar - has to break down with glucogen taking more energy and tadah, you've burned more. But usually since insulin is there it acts antagonistically with burning fat so lean muscle would be catabolized a lot then. SO that sounds bad for anyone who wants to be muscle large - this would only be good for women wanting to be stick thin. Plus, while we're at it, we get tired when blood sugar's low yes? Why SPECIFICALLY? Are there receptors say in our pinkey toes that say to conserve energy, sugar's low? DETAILS!? Thanks!
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- All our body cells use glucose (sugar) for energy. Everything we digest goes through the stomach and the intestines and from the intestines, it goes to the liver for processing...this includes carbohydrates, fats, sugars, and proteins. The body will use the sugar first ...normally known as glucose. When the glucose goes lower in the body, usually between meals, it turns to the reserves it has of glycogen, fats and proteins and starts to break them down and change them into glucose forms. This is known as glycogenolysis. http://biology.about.com/library/organs/bldigestliver5.htm How is the fats broken down in the intestines to be absorbed into the body? The liver makes biles, this bile flows through tube like structures...known as ducts...to the gallbladder to be concentrated and then released into the intestines when we eat fats. (It acts like a detergent that breaks up the grease in dishes we wash.) It breaks down the fats. http://arbl.cvmbs.colostate.edu/hbooks/pathphys/digestion/liver/bile.html Here is a metabolic pathway site that will describe to you alot more: http://www.gwu.edu/~mpb/ There are two types of fats in our body: Cholesterol which is used when our cells die. It is used to make new cell membrances. Triglycerides are used for energy and will be stored. When we go low on glucose, the liver naturally will change this to glucose form to be used by the cells for energy, no matter what cells they are, muscle, organs, brain, etc. I hope this gives you the information you needed. This is the best I could do. To know more about how glucose is broken down to form energy...you might want to look into the Kreb cycle and the Cori cycle http://en.wikipedia.org/wiki/Kreb's_cycle http://www.johnkyrk.com/krebs.html As the body exercises and even as we function during the day, the body is constantly using glucose as its form of energy. Insulin is what opens the door to the cells to let the glucose enter so the cells can use them for energy. Without insulin, the glucose would stay in our blood and the blood levels of this would keep rising. It is a well known fact that as we exercise, we use alot of the sugar in the blood up and therefore need less insulin. If the levels in the blood go too low from not eatting or over exercising without replacing the glucose, it can be just as dangerous... as we would feel faint, start shaking, and could easily die cause the cells are starving without this energy source. Eatting a diet low in sugar and low in carbohydrates, helps the person who has diabetes control their weight...however, they cannot eliminate it completely as the body needs some of these food for certain vitamins and minerals. There are also a certain amount of fats that we need also...it is better to use good fats like olive oil than to use saturated fats that tend to just build up in our vessels.
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