Doreen thanks for the reference to the book Fats that Heal and Fats that Kill, I am half way through reading it and so far I particularly enjoyed the explanation concerning the conversion of sugar into triglycerides. I have not seen the chemistry involved in this conversion explained so clearly before.
To quote "Refined dietary sugars almost always turn into fats, and starches can also turn into saturated fats" also "Sweet fruits contain starches but also large amounts of sugar, and can lead to fat production when they form more than a small part of our diet"
There is of course much more detail in the book and I endorse Doreen's recommendation that this book should be added to your low carb reading list.
Here is the link again.
http://www.udoerasmus.com/fatsmain.htm