There is a massive amount of info supporting ketogenic diets and fasting. I'd recommend you look into the Keto Talk and Fasting Talk podcasts and read Jimmy Moore's books: Keto Clarity and the Complete Guide to Fasting. Also, congrats on your progress and keep it up! I dropped over 60 pounds (started at 215 lbs, now at 152 and very lean) doing what you're doing.
But ceejayoz's advice is good advice... always do your own research!
But ceejayoz's advice is good advice... always do your own research!