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Is this true?

Dillinger
But unless I'm missing something fairly significant fat does not turn into glucose; it's a one way street
You are correct in that most textbooks say that fatty acids aren't converted to glucose in humans. It's speculative but there are now researchers that think that there is indeed such a conversion and this could be quite significant for those people on a low carb/ketogenic diet. (and those Inuits) Warning, none of this is at all easy to follow.

http://blog.cholesterol-and-health.com/ ... fatty.html
and how it's relevance to the Inuit diet. (NB in silico means a computer model!)
http://www.circumpolarhealthjournal.net ... 8436/pdf_1

However, the mainstream answer is that body can use protein from food or from muscle to create glucose.Those of us who have lost weight because of a lack if insulin will have lost not only fatty tissue but muscle as well in an effort to supply glucose to the cells This breakdown of muscle also happens when people lose weight on a diet.(so sadly not all weight loss is fat loss)
The body will also make use of broken down fat for energy (a process that takes place continually during 'fasting'. You don't have to be on a low carb or ketogenic diet to use fat for fuel It is for example the main source of fuel in long duration low/moderate intensity level exerc ise. If we don't use the fatty acids they will be recycled)
Fats are stored as triglycerides; these contain fatty acids and a glycerol spine. When fats are broken down , the liver can make use of the glycerol backbone to create glucose via glycolysis/gluconeogenesis .
This is a fairly simple explanation as to how fat is absorbed and broken down by the body
http://science.howstuffworks.com/enviro ... -cell1.htm
 
Interesting Phoenix, but I'd be pretty sure treepeony's GP didn't have a clue about any of this when he made his comment.
 
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