I really don't know much of the details on this subject so I was wondering if I could get some help. If you could go through the whole process as detailed as possible I'd truly appreciate it.
07-05-2010, 08:01 PM #1
07-05-2010, 08:08 PM #2
07-05-2010, 08:11 PM #3http://infinutrition.com - Complete fitness and personal training platform. Visit us or contact me for more information.
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07-05-2010, 08:14 PM #4
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07-05-2010, 08:45 PM #5
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07-06-2010, 11:19 AM #8
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07-06-2010, 01:26 PM #9
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It occurs through a process called glycogenolysis where glycogen (stored fat reserves) are broken down in the liver to a form that is usable to the body, glucose. When you are eating in a deficit you aren't supplying your body with all the energy it needs so it has to resort to it's reserves for energy, thereby using the stored glycogen and thereby causing you to lose fat.
Look up glycogenolysis if you want more details, but this is the jist of it.
07-06-2010, 08:36 PM #10
07-07-2010, 01:42 AM #11
From the above link:
The process by which stored fats become energy sources begins with how fat is released from the adipose tissue. Fats are digested through conversion into free fatty acids, which are stored in a form known as triglycerides in the adipose tissue. Various hormones will trigger the release of the triglycerides from adipose tissue. These triglycerides, through the process known as lipolysis (a breakdown of the stored fats), are reduced to two distinct components: glycerol, (which is processed by the liver for further use), and fatty acids (which are released into the bloodstream). The fatty acids are transported to the mitochondria, the portion of a cell that produces power within each cell. The transport of the fatty acids to the mitochondria is facilitated by the enzyme carnitine, a transport mechanism that is found in food sources such as red meats and poultry. The mitochondria are also a storehouse for deoxyribonucleic acid (DNA), as well as the enzymes necessary to permit ongoing cellular construction. In the mitochondria, the fatty acids are oxidized in the process that creates adenosine triphosphate (ATP), the energy-producing fuel.
07-07-2010, 05:35 AM #12
^^^^These are all wrong
Op, I don't know the exact mechanism, but I can tell u why these are all wrong.
first of all, fat cannot be broken into carbohydrates, especially not glycogen (not glucose either, which I tink is what he meant t say)
2nd, glycogen is not bodyfat reserves. bodyfat is bodyfat. glycogen is glucose stored in the liver/muscles.
and finally, there is no oxygen in fat (except in the glycerol portion, which makes up almost none of the suable energy). fat is carbon hydrogen chains. it is releasd through co2 + water
07-08-2010, 03:46 AM #13
Perhaps you should look up the term and learn a little.
Wikipedia is a good start (http://en.wikipedia.org/wiki/Fatty_acid_metabolism) and has links to all the correct steps like beta-oxidation and the ETC.
Fat in the body is indeed 'oxidised'. Which is one step in the process of becoming CO2. In fact how could it become CO2, if it was not oxidised at some point?
07-08-2010, 04:53 AM #14
As far as the last one I quoted, I know what oxidation means, my concern was that the poster said that fat is excreted from the body as C02, and I wanted to make the addition that it is also lost in material amounts through urinary output.
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