There are many sites offering guidance on the use of low-carbohydrate high fat diets. Atkin's type diets or more correctly ketogenic diets. I have not had a chance to read any of these in depth, but all the ones listed seem on the surface to provide sensible information.
Warning Dr. Jack Kruse is very controversial. He talks about the mitochondria in your cells producing "light", when most people would say energy. I don't know what to make of him. I challenged one of his statements on a "Nutrition" forum a few months back, and he went to a lot of trouble to give me a pretty good reply, showing that, as far as I can tell, I was wrong. Nobody else on the forum was prepared to challenge what he said.
The Ketogenic Diet Resources. http://www.ketogenic-diet-resource.com/
The Thermodynamics of Weight Loss Diets.http://www.nutritionandmetabolism.com/content/pdf/1743-7075-1-15.pdf
Guides to Ketosis
Understanding how to be the best you can be, and introduction to LCHF diets by Professor Grant Schofield.
Getting started on LCHF – Part 1: Clean out day http://profgrant.com/2014/03/19/how-to-start-lchf-part-1-clean-out-day/
Getting started on LCHF – Part 2: Fat adaptation http://profgrant.com/2014/03/24/getting-started-on-lchf-part-2-fat-adaptation/
How ketogenic (low carb high fat) diets work http://profgrant.com/2013/07/05/how-ketogenic-low-carb-high-fat-diets-work/