This is VERY old news. I switched to a high fat (75%) low carb (5%) diet in January and have lost 25lbs.
When people ask how you can lose weight on a high fat diet I tell them 2 agricultural anecdotes.
1. When pig farmers learned that the USDA declared that eating fat makes you fat, they tried feeding their pigs a high fat diet and of
course the pigs lost weight. They quickly reverted to feeding the pigs high carb, fat free diets of corn and other grains.
2. At a holistic management talk by Ian Mitchell-Innes he stressed that you had to be careful during spring that the cows get
enough carbs, if the forage is too high in protein they will lose weight. Yes, he said, Atkins was correct.