where does fat in LCHF go?

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where does fat in LCHF go?


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Old 12-05-2013, 16:32   #1
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Default where does fat in LCHF go?

Greetings

This LCHF system is fascinating me.
Although this is only day 3 for me, I'm beginning to notice positive health signs.

I'm interested to know this: is there a difference in the process of digesting fat when there are carbs in the meal, than when there are no carb?

Where does the body get the glucose it needs for energy? is it able to transform fat into glucose? or does it burn fat directly to transform it into energy?

And why do we loose body fat in LCHF system? what is the scientific process? does the body leave the fat we eat and instead use our fat reserve in our belly and other body parts? f so, what does the body use the fat we eat for?

Many thanks in advance for any explanations or links.

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Old 12-05-2013, 16:34   #2
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Check out
www.dietdoctor.com/lchf

Or

www.ketogenic-diet-resource.com

You may find answers to some of your questions at these sites.

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Old 12-05-2013, 16:44   #3
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There are TWO ways to fuel our bodies; we can be on the glucose system you mentioned, which is fueled by carbs. Or we can be on a ketone system which is fueled by fats. No, fats are not converted to glucose. When we eat high fat and reduce our carbs as much as possible, we switch from a glucose energy system to a ketones energy system which is much safer for diabetics. This is why it only works with reduced carb intake.

So yes, there is a difference when you add carbs to your meals - they provide glucose which your body grabs immediately because it's easier, and that screws up your efforts to get on the fats system. So you can't go LCHF and still eat carbs - it doesn't work that way. You may be able to eat a few more carbs than other people, but you still have to watch carefully.

And where do the fats go? They go for energy, assuming you aren't eating carbs that create glucose which your body will take first.




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Old 12-05-2013, 17:11   #4
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http://www.diabetesforum.com/diabete...t-lchf-go.html

Here is alink, more on his blog.
Maybe you would like to read the book
The Art and Science of Low Carbohydrate Living: An Expert Guide to Making the Life-Saving Benefits of Carbohydrate Restriction Sustainable and Enjoyable: Stephen D. Phinney, Jeff S. Volek: 9780983490708: Amazon.com: Books
or
The Art and Science of Low Carbohydrate Performance: Jeff S. Volek, Stephen D. Phinney: 9780983490715: Amazon.com: Books

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Old 12-05-2013, 17:13   #5
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Another thing that happens (which is explained in the links David posted) is that when you reduce the carbs, there is less need for insulin. For T2s, we usually produce insulin but our cells are resistant (insulin resistance) so it take a lot more insulin to force glucose into the cells. Because of this, there is extra insulin floating around in the blood. The other function of insulin is to push glucose into fat cells for storage, which it does with great efficiency for most of us.

With low-carb eating, the pancreas produces less insulin because it's not needed so much. There is another hormone (which I can never remember the name of) that, in a low-insulin environment, will cause the release of stored fat from the fat cells and this is put into circulation. The liver will process these lipids into ketones (I think I have that right) which can be used as fuel, and is used when glucose is low in the blood.

It's a win/win situation. Not only does the body stop storing fat, but stored fat is being released as well. That's why low-carb dieting is usually so successful for people - diabetics and non-diabetics as well.

This is my non-scientific understanding. Do read the links, though, for more details.

One more thing.... very few organs in the body actually need glucose - the brain being one of them. Even if one ate absolutely no carbs at all, the body is capable of making the needed glucose internally (I think from protein). So from the standpoint of needing glucose/carbs - there is no need. However, some carbs make meals so much more enjoyable.

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Old 12-05-2013, 19:17   #6
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Thanks for the rich info.
One thing puzzles me, why does our body has to release fat stored in our fat cells, when its readily available through our high fat diet? (specially with the fact that fat produces more than double the energy that carbs can produce (9 compared to 4)).

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Old 12-05-2013, 19:32   #7
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One more thing is that when glucose is in excess of immediate needs, the only place it can go is converted to triglycerides (fat) and stored. This happens pretty quickly after digestion.

Fat on the other hand, whether from digestion or mobilized (released) from storage can be used by some cells directly for energy (as "free fatty acids") such as skeletal muscle or sent to the liver and converted to ketones. These ketones can be used by cells (95% of all cells can do this) directly for energy just like glucose, excreted by the kidneys or even EXHALED. This last one is the infamous LC/HF "acetone breath". These calories lost as ketones in these two ways cause the "calories-in/calories-out" theory to not apply.

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Old 12-05-2013, 19:41   #8
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Solom,

You will find that as your body gets used to the use of fat rather than carbohydrate as its fuel supply that you have a lot more energy than before. You will find that you don't need to restrict calories to achieve weight loss and with your body burning fat, you will also be able to draw on your fat stores that previously your system didn't and effectively couldn't touch.

Yesterday you remarked on the quick improvement of my HbA1c. While that was coming down, so was my weight - between August 2010 and February 2011, I lost (without trying) thirty pounds in weight. From being fifteen pounds into the "overweight" category, I am now exactly in the middle of "normal". My diet has not changed since that first change following diagnosis. I eat around 2,100 calories each day and my weight is now absolutely stable.

Our body is an amazing machine and will self regulate its fat reserves provided we give it the tools to do so. And that is the LCHF diet.

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Old 12-05-2013, 22:04   #9
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If you're using energy beyond what it provided by dietary fats, then you body converts bodily fat stores for its needs. Our bodies will always take what they need - they will even cannibalize muscle tissue to get what they need. So just keep eating those fats!




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